Department of Physics

Prof. W.G.D. Dharmaratna

Emeritus Professor

Ph. D. in Theoretical Physics, 1989 Tufts University, Department of Physics and Astronomy, USA.
Post graduate studies (MSC+PHD) GPA =4.0

M. Sc. in Physics, 1984
Tufts University, Department of Physics and Astronomy, USA.

B. Sc. (Special in Physics), 1978
University of Peradeniya, Peradeniya, Sri Lanka

School Education: Sri Palee College, Horana Until 1973

Fellow - Institute of Physics, Sri Lanka
Life Member- SLAAS

Email - dharma@phy.ruh.ac.lk
Office - +94412227020/

SUPERVISION OF POSTGRADUATE STUDENTS

a)Kalpanie M. Liyanage - PhD in HEP (CMS) -Started in 2018

b)Nimantha Perera - PhD in HEP (CMS) - Started in 2018

c)S.M.N. Sethunga - PhD To be completed in 2019

d)D.A.Madarasinghe - MPhil Thesis is submitted (2019)

e)Ms. Nadeesha Wickramage - PhD Completed in 2014 (CMS experiment, 1st from a Sri Lankan University))

f)Ms. K.M.E.M. Karunawardana - MPhil Completed in 2010

g)Mr. E.M. Ranatunge - MPhil Completed in 2010

h)Mr. J.A.P. Bodhika - PhD Completed in 2009 (University of Colombo)

i)Mr. J. Peiris- - MPhil Completed in 2008 (Supervised at the Final stage)

j)Mr. Kapila Hewaparakrama - MPhil Completed in 1998

High Energy Physics (CMS Experiment, CERN, Initiated the HEP research in a Sri Lankan Universities for the first time)

Condensed matter Physics

Photoelectrochemical cells

Thermal Conductivity

Energy Saving Devices

Noise Pollution and Lightning

Particle Interactions (Quantum Chromodynamics)

Spin Physics

Transverse Polarization

Computational Physics

REFREED JOURNAL PUBLICATIONS

1. A multi-dimensional search for new heavy resonances decaying to boosted WW, WZ, or ZZ boson pairs in the dijet final state at 13 TeV, CMS Collaboration, Published in : Eur. Phys. J. C 80 (2020) 237

2. Combined search for supersymmetry with photons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Lett. B 801 (2020) 135183

3. Measurement of differential cross sections and charge ratios for t-channel single top quark production in proton-proton collisions at = 13 TeV, CMS Collaboration

Published in : Eur. Phys. J. C 80 (2020) 370

4. Measurement of top quark pair production in association with a Z boson in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2003 (2020) 056

5. Search for direct pair production of supersymmetric partners to the lepton in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Eur. Phys. J. C 80 (2020) 189

6. Search for heavy Higgs bosons decaying to a top quark pair in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2004 (2020) 171

7. Search for dark matter particles produced in association with a Higgs boson in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2003 (2020) 025

8. Search for production of four top quarks in final states with same-sign or multiple leptons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Eur. Phys. J. C 80 (2020) 75

9. Search for a charged Higgs boson decaying into top and bottom quarks in proton-proton collisions at = 13 TeV in events with electrons or muons, CMS Collaboration, Published in : JHEP 2001 (2020) 096

10. Searches for physics beyond the standard model with the variable in hadronic final states with and without disappearing tracks in proton-proton collisions at = 13 TeV, CMS Collaboration,

Published in : Eur. Phys. J. C 80 (2020) 3

11. Search for electroweak production of a vector-like T quark using fully hadronic final states, CMS Collaboration, Published in : JHEP 2001 (2020) 036

12. Measurement of the production cross section in the all-jet final state in pp collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Lett. B 803 (2020) 135285

13. Evidence for WW production from double-parton interactions in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Eur. Phys. J. C 80 (2020) 41

14. Running of the top quark mass from proton-proton collisions at = 13 TeV, CMS Collaboration,

Published in : Phys. Lett. B 803 (2020) 135263

15. Calibration of the CMS hadron calorimeters using proton-proton collision data at = 13 TeV, CMS Collaboration, Published in : JINST 15 (2020) P05002

16. Search for supersymmetry with a compressed mass spectrum in events with a soft lepton, a highly energetic jet, and large missing transverse momentum in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. Lett. 124 (2020) 041803

17. Study of meson production from jet fragmentation in pp collisions at = 8 TeV, CMS Collaboration, Published in : Phys. Lett. B 804 (2020) 135409

18. Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at = 2.76 and 5.02 TeV, CMS Collaboration, Published in : Eur. Phys. J. C 80 (2020) 534

19. Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at = 13 TeV, CMS Collaboration.

Published in : JHEP 2003 (2020) 065

20. Measurement of properties of decays and search for with the CMS experiment, CMS Collaboration, Published in : JHEP 2004 (2020) 188

21. Search for top squark pair production in a final state with two tau leptons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2002 (2020) 015

22. Search for dijet resonances using events with three jets in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Lett. B 805 (2020) 135448

23. Search for new neutral Higgs bosons through the process in pp collisions at = 13 TeV, Published in : JHEP 2003 (2020) 055

24. Observation of the decay in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Lett. B 802 (2020) 135203

25. Measurement of the jet mass distribution and top quark mass in hadronic decays of boosted top quarks in pp collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. Lett. 124 (2020) 202001

26. Search for high mass dijet resonances with a new background prediction method in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2005 (2020) 033

27. Search for physics beyond the standard model in multilepton final states in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2003 (2020) 051

28. Search for supersymmetry in pp collisions at = 13 TeV with 137 fb-1 in final states with a single lepton using the sum of masses of large-radius jets, CMS Collaboration,

Published in : Phys. Rev. D 101 (2020) 052010

29. Search for lepton flavour violating decays of a neutral heavy Higgs boson to and in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2003 (2020) 103

30. Measurement of the top quark pair production cross section in dilepton final states containing one lepton in pp collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2002 (2020) 191

31. Search for a heavy Higgs boson decaying to a pair of W bosons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 2003 (2020) 034

32. A search for the standard model Higgs boson decaying to charm quarks, CMS Collaboration,

Published in : JHEP 2003 (2020) 131

33. Performance of the reconstruction and identification of high-momentum muons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JINST 15 (2020) P02027

34. Search for a narrow resonance lighter than 200 GeV decaying to a pair of muons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. Lett. 124 (2020) 131802

35. Constraints on the versus polarizations in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. Lett. 124 (2020) 162002

36. A measurement of the Higgs boson mass in the diphoton decay channel, CMS Collaboration,

Published in : Phys. Lett. B 805 (2020) 135425

37. Measurement of the cross section for electroweak production of a Z boson, a photon and two jets in proton-proton collisions at = 13 TeV and constraints on anomalous quartic couplings, CMS Collaboration, Published in : JHEP 2006 (2020) 076

38. Observation of Two Excited States and Measurement of the (2S) Mass in pp Collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. Lett. 122 (2019) 132001

39. Search for resonances decaying to a pair of Higgs bosons in the final state in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 10 (2019) 125

40. Search for the production of events at = 13 TeV, CMS Collaboration,

Published in : Phys. Rev. D 100 (2019) 012004

41. Search for a Light Charged Higgs Boson Decaying to a W Boson and a CP-Odd Higgs Boson in Final States with e?? or ??? in Proton-Proton Collisions at = 13 TeV, CMS Collaboration,

Published in : Phys. Rev. Lett. 123 (2019) 131802

42. Search for Low-Mass Quark-Antiquark Resonances Produced in Association with a Photon at = 13 TeV. CMS Collaboration, Published in : Phys. Rev. Lett. 123 (2019) 231803

43. Search for Higgs and Z boson decays to or Y pairs in the four-muon final state in proton-proton collisions at = 13 TeV. CMS Collaboration, Published in : Phys. Lett. B 797 (2019) 134811

44. Search for vector like leptons in multilepton final states in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. D 100 (2019) 052003

45. Combination of CMS searches for heavy resonances decaying to pairs of bosons or leptons, CMS Collaboration, Published in : Phys. Lett. B 798 (2019) 134952

46. Search for the Production of Four Top Quarks in the Single-Lepton and Opposite-Sign Dilepton Final States in Proton-Proton Collisions at = 13 TeV. CMS Collaboration, Published in : JHEP 1911 (2019) 082

47. Search for long-lived particles using nonprompt jets and missing transverse momentum with proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Lett. B 797 (2019) 134876

48. Search for pair production of vector-like quarks in the fully hadronic final state. CMS Collaboration,

Published in : Phys. Rev. D 100 (2019) 072001

49. Measurement of the top quark Yukawa coupling from kinematic distributions in the lepton+jets final state in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. D 100 (2019) 072007

50. Search for MSSM Higgs bosons decaying to in the proton-proton collisions at = 13 TeV. CMS Collaboration, Published in : Phys. Lett. B 798 (2019) 134992

51. Study of the decay in proton-proton collisions at = 8 TeV. CMS Collaboration,

Published in : JHEP 12 (2019) 100

52. Search for physics beyond the standard model in events with overlapping photons and jets, CMS Collaboration, Published in : Phys. Rev. Lett. 123 (2019) 241801

53. Search for anomalous triple gauge couplings in WW and WZ production in lepton + jet events in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : JHEP 12 (2019) 062

54. Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at = 13 TeV, CMS Collaboration,

Published in : Eur. Phys. J. C 79 (2019) 893

55. Search for supersymmetry in proton-proton collisions at 13 TeV in final states with jets and missing transverse momentum. CMS Collaboration, Published in : JHEP 1910 (2019) 244

56. Search for supersymmetry using Higgs boson to diphoton decays at = 13 TeV, CMS Collaboration,

Published in : JHEP 11 (2019) 109

57. Search for low mass vector resonances decaying into quark-antiquark pairs in proton-proton collisions at = 13 TeV. CMS Collaboration, Published in : Phys. Rev. D 100 (2019) 112007

58. Measurements of differential Z boson production cross sections in proton-proton collisions at = 13 TeV. CMS Collaboration, Published in : JHEP 12 (2019) 061

59. Search for long-lived particles using delayed photons in proton-proton collisions at = 13 TeV, CMS Collaboration, Published in : Phys. Rev. D 100 (2019) 112003

60. Optical and structural Properties of CdS thin films prepared using electro-deposition technique, G.D.K.Mahanama, D.A.Madarasinghe, W.G.D.Dharmarathna, D.Jayasundara, Ruhuna Journal of Science, Vol 9: 57-63, 2018

61. Reconstruction of Lightning Channel Geometry by Localizing Thunder Sources, Bodhika J.A.P.1, Dharmarathne W.G.D.1, Mahendra Fernando2 and Vernon Cooray, Journal of Atmospheric and Solar-Terrestrial Physics 102 (2013) 81–90.

62. A new boson with a mass of 125 GeV observed with the CMS experiment at the Large Hadron Collider, The CMS Collaboration, Science 338,1569 (2012); DOI 10.1126/scence. 12|30|8|1|6

63. Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC.

By CMS Collaboration (Serguei Chatrchyan et al.). Published in Phys.Lett. B716 (2012) 30-61

CMS-HIG-12-028, CERN-PH-EP-2012-220

64. Transverse momentum and pseudorapidity distributions of charged hadrons in pp collisions at $sqrt(s)$ = 0.9 and 2.36 TeV. By CMS Collaboration (Vardan Khachatryan et al.). CMS-QCD-09-010, CERN-PH-EP-2010-003, Feb 2010. 31pp. Published in JHEP 1002:041,2010. e-Print: arXiv:1002.0621 [hep-ex]

65. Commissioning and Performance of the CMS Pixel Tracker with Cosmic Ray Muons.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-001, FERMILAB-PUB-10-144-CMS, Nov 2009. 37pp. Published in JINST 5:T03007,2010. e-Print: arXiv:0911.5434 [physics.ins-det]

66. Performance of the CMS Level-1 Trigger during Commissioning with Cosmic Ray Muons.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-013, FERMILAB-PUB-10-145-CMS, Nov 2009. 49pp. Published in JINST 5:T03002,2010. e-Print: arXiv:0911.5422 [physics.ins-det]

67. Measurement of the Muon Stopping Power in Lead Tungstate. By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-005, FERMILAB-PUB-10-146-CMS, Nov 2009. 31pp.

Published in JINST 5:P03007,2010. e-Print: arXiv:0911.5397 [physics.ins-det]

68. Commissioning and Performance of the CMS Silicon Strip Tracker with Cosmic Ray Muons.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-002, FERMILAB-PUB-10-147-CMS, Nov 2009. 45pp. Published in JINST 5:T03008,2010. e-Print: arXiv:0911.4996 [physics.ins-det]

69. Performance of CMS Muon Reconstruction in Cosmic-Ray Events.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-014, FERMILAB-PUB-10-148-CMS, Nov 2009. 47pp. Published in JINST 5:T03022,2010. e-Print: arXiv:0911.4994 [physics.ins-det]

70. Performance of the CMS Cathode Strip Chambers with Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-011, FERMILAB-PUB-10-149-CMS, Nov 2009. 39pp. Published in JINST 5:T03018,2010. e-Print: arXiv:0911.4992 [physics.ins-det]

71. Performance of the CMS Hadron Calorimeter with Cosmic Ray Muons and LHC Beam Data.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-009, FERMILAB-PUB-10-150-CMS, Nov 2009. 35pp. Published in JINST 5:T03012,2010. e-Print: arXiv:0911.4991 [physics.ins-det]

72. Fine Synchronization of the CMS Muon Drift-Tube Local Trigger using Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-025, FERMILAB-PUB-10-151-CMS, Nov 2009. 33pp. Published in JINST 5:T03004,2010. e-Print: arXiv:0911.4904 [physics.ins-det]

73. Calibration of the CMS Drift Tube Chambers and Measurement of the Drift Velocity with Cosmic Rays. By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-023, FERMILAB-PUB-10-152-CMS, Nov 2009. 37pp. Published in JINST 5:T03016,2010. e-Print: arXiv:0911.4895 [physics.ins-det]

74. Performance of the CMS Drift-Tube Local Trigger with Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-022, FERMILAB-PUB-10-153-CMS, Nov 2009. 31pp. Published in JINST 5:T03003,2010. e-Print: arXiv:0911.4893 [physics.ins-det]

75. Commissioning of the CMS High-Level Trigger with Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-020, FERMILAB-PUB-10-154-CMS, Nov 2009. 31pp. Published in JINST 5:T03005,2010. e-Print: arXiv:0911.4889 [physics.ins-det]

76. Identification and Filtering of Uncharacteristic Noise in the CMS Hadron Calorimeter.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-019, FERMILAB-PUB-10-155-CMS, Nov 2009. 29pp. Published in JINST 5:T03014,2010. e-Print: arXiv:0911.4881 [physics.ins-det]

77. Performance of CMS Hadron Calorimeter Timing and Synchronization using Test Beam, Cosmic Ray, and LHC Beam Data. By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-018, FERMILAB-PUB-10-156-CMS, Nov 2009. 31pp. Published in JINST 5:T03013,2010. e-Print: arXiv:0911.4877 [physics.ins-det]

78. Performance of the CMS Drift Tube Chambers with Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-012, FERMILAB-PUB-10-157-CMS, Nov 2009. 45pp. Published in JINST 5:T03015,2010. e-Print: arXiv:0911.4855 [physics.ins-det]

79. Commissioning of the CMS Experiment and the Cosmic Run at Four Tesla.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-008, FERMILAB-PUB-10-158-CMS, Nov 2009. 37pp. Published in JINST 5:T03001,2010. e-Print: arXiv:0911.4845 [physics.ins-det]

80. CMS Data Processing Workflows during an Extended Cosmic Ray Run. By CMS Collaboration (Serguei Chatrchyan et al.). FERMILAB-PUB-09-602-CD-CMS, CMS-CFT-09-007, Nov 2009. (Published Mar 19, 2010). 43pp. Published in JINST 5:T03006,2010. e-Print: arXiv:0911.4842 [physics.ins-det]

81. Aligning the CMS Muon Chambers with the Muon Alignment System during an Extended Cosmic Ray Run. By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-017, FERMILAB-PUB-10-160-CMS, Nov 2009. 35pp. Published in JINST 5:T03019,2010. e-Print: arXiv:0911.4770 [physics.ins-det]

82. Performance Study of the CMS Barrel Resistive Plate Chambers with Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-010, FERMILAB-PUB-10-161-CMS, Nov 2009. 33pp. Published in JINST 5:T03017,2010. e-Print: arXiv:0911.4045 [physics.ins-det]

83. Time Reconstruction and Performance of the CMS Electromagnetic Calorimeter.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-006, FERMILAB-PUB-10-162-CMS, Nov 2009. 27pp. Published in JINST 5:T03011,2010. e-Print: arXiv:0911.4044 [physics.ins-det]

84. Alignment of the CMS Muon System with Cosmic-Ray and Beam-Halo Muons.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-016, FERMILAB-PUB-10-163-CMS, Nov 2009. 41pp. Published in JINST 5:T03020,2010. e-Print: arXiv:0911.4022 [physics.ins-det]

85. Precise Mapping of the Magnetic Field in the CMS Barrel Yoke using Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-015, FERMILAB-PUB-10-164-CMS, Oct 2009. 35pp. Published in JINST 5:T03021,2010. e-Print: arXiv:0910.5530 [physics.ins-det]

86. Performance and Operation of the CMS Electromagnetic Calorimeter.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-004, FERMILAB-PUB-10-165-CMS, Oct 2009. 39pp. Published in JINST 5:T03010,2010. e-Print: arXiv:0910.3423 [physics.ins-det]

87. Alignment of the CMS Silicon Tracker during Commissioning with Cosmic Rays.

By CMS Collaboration (Serguei Chatrchyan et al.). CMS-CFT-09-003, FERMILAB-PUB-10-166-CMS, Oct 2009. 39pp. Published in JINST 5:T03009,2010. e-Print: arXiv:0910.2505 [physics.ins-det]

88. The CMS experiment at the CERN LHC, S. Chatrchyan et al. (CMS Collaboration ), JINST 3 (2008) S08004, 361pp

89. CMS physics technical design report: Addendum on high density QCD with heavy ions, David G. d'Enterria, (Ed.) et al. (CMS Collaboration). CERN-LHCC-2007-009, Mar 2007. 169pp.

Published in J.Phys.G34:2307-2455,2007.

90. CMS expression of interest in the SLHC, J. Nash, (Ed.) et al. (CMS Collaboration), CERN-LHCC-2007-014, CERN-LHCC-G-131, Mar 2007. 56pp.

91. CMS Technical Design Report, Volume II: Physics Performance, G.L. Bayatian et al. (CMS Collaboration) CERN-LHCC-2006-021, CMS-TDR-008-2, 2007. 585pp., Published in J. Phys. G34:995-1579,2007.

92. SUSY Discovery at LHC: Extending Reach with Modern Analysis Methods, W.G.D. Dharmaratna, V. Hagopian, K.F. Johnsen, J. McDonald and H.B. Prosper, hep-ex/0607002, July 2006.

93. CMS Physics Technical Design Report, Volume I: Detector Performance and Software, G.L. Bayatian et al. (CMS Collaboration), CERN-LHCC-2006-001, CMS-TDR-008-1, 2006. 521pp.

94. Calculation of Feynman diagrams using a symbolic manipulation programme in personal computers, W.G.D. Dharmaratna and M.A.A. Karunarathna, Journal of Physics, IPSL, Vol. 1, 2000.

95. Variation of Semiconduction properties in Zirconium and Cobolt Ferrocyanides with Interstitial Water, W.G.D. Dharmaratna and D.M.W. Daundasekara, Ceylon Journal of Science, Vol. 5, 1998, 49.

96. THE D0 UPGRADE, S. Abachi et al. (D0 Collaboration), FERMILAB-CONF- 95-177-E, Jul 1995. 54pp. Submitted to International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995. Published in Nucl. Instrum. Meth. A408, (1998), 103

97. Single Particle Polarization in QCD Subprocesses, W.G.D.Dharmaratna and G.R. Goldstein, Phy. Rev. D, Vol. 53 (1996), 1073.

98. Studies of Topological Distribution of Inclusive Three and Four Jet Events in P Collisions at =1800-GeV with the D0 Detector. S. Abachi et al. (D0 Collaboration), Phys.Rev.D53 (1996), 6000.

99. Top Quark Search with the D0 1992-93 Data Sample, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-95-020-E, Also in Phy. Rev. D, Vol. 52 (1995), 4877.

100. Second Generation Leptoquark Search in P Collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration) , HEPEX-9507002, Also in Phy. Rev. Lett., Vol 75 (1995), 3618

101. W and Z Boson Production in P Collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-95-130-E, Also in Phy. Rev. Lett., Vol. 75 (1995), 1456.

102. Study of the Strong Coupling Constant using W + jets Process, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-95-085-E, Also in Phy. Rev. Lett., Vol. 75 (1995), 3226.

103. Transverse Energy Distribution within jets in P Collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration) , Phy. Lett. B, 357 (1995), 500.

104. Search for heavy W bosons in 1.8 TeV P Collisions, S. Abachi et al. (D0 Collaboration), Phy. Lett. B, 358 (1995), 405.

105. Lmits on the Anomalous ZZ and Z couplings in P Collision at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Phys.Rev.Lett.75 (1995), 1028.

106. Rapidity Gaps Between Jets at D0, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-216-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium (1995).

107. Measurement of Mixing using Dimuons at D0, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-209-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium (1995).

108. Search for new gauge bosons using the D0 Detector, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-210-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium (1995).

109. Search for Squarks and Gluinos in P Collisions at D0 Detector, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-193-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP 95), Brussels,Belgium (1995).

110. Measurement of the Upsilon Cross-Section at D0 using Dimuons, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-206-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium (1995).

111. Inclusive Dimuons and b-quark Production Cross-Section in P Collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-207-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP95), Brussels,Belgium (1995).

112. Test of QCD in W and Z Production at Tevatron, S. Abachi et al. (D0 Collaboration),

Fermilab-Conf-95-259-E, Also in the Proceedings of the International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium (1995).

113. Search for W Boson Pair Production in P Collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-044-E, Also in Phy. Rev. Lett. 75 (1995), 1023.

114. Measurement of the WW Gauge Boson Couplings in P Collisions at =1.8 TeV. S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-101-E, Also in Phy. Rev. Lett. 75 (1995), 1034.

115. Search for Squarks and Gluinos in P Collisions at =1.8 TeV. S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-057-E, Also in Phy. Rev. Lett. 75 (1995), 618.

116. Inclusive and B-quark Production Cross Sections in P Collisions at =1.8 TeV. S. Abachi et al. (D0 Collaboration), Fermilab-Pub-94-409-E, Also in Phy. Rev. Lett. 74 (1995), 3548.

117. Obserevation of Top Quark, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-95-028-E, Also in Phy. Rev. Lett. 74 (1995), 2632.

118. Search for High Mass Top Quark Production in P Collisions at =1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-94-354-E, Also in Phy. Rev. Lett. 74 (1995), 2422.

119. Rapidity Dependence of the Inclusive J/ Production in P Collisions at =1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-361-E, Nov 1995. 12pp. Int. Symp. On Lepton-Photon Interactions, Beijing, China, Aug 10-15, 1995.

120. Rapidity Correlations Between High (P ) Intermediate Vector Bosons and Jets in P Collisions at =1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-218-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

121. Search for Light Top Squarks with the D0 Detector, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-187-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

122. Search for First and Second Generation Leptoquarks at D0, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-184-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

123. Color Coherent Radiation in Multi-Jet Events from P Collisions at =1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-182-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

124. J/ Production in P Collisions at =1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-205-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

125. Studies of Topological Distribution of Inclusive Three and Four Jet Events in P Collisions at =1800-GeV with the D0 Detector. S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-214-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

126. Search for Fourth Generation Neutral Heavy Leptons. S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-254-E, Jul 1995, Presented at International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

127. Diphoton Production in P Collisions at =1.8-TeV. S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-251-E, Jul 1995. Submitted to LP'95: International Symposium on Lepton Photon Interactions (IHEP), Beijing, P.R. China, 10-15 Aug 1995.

128. Measurement of Inclusive Triple Differential Dijet Cross-Section in P Collisions at =1.8-TeV. S. Abachi et al. (D0 Collaboration), Fermilab-Conf-95-217-E, Jul 1995, International Europhysics Conference on High Energy Physics (HEP 95), Brussels, Belgium, 27 Jul - 2 Aug 1995.

129. The D0 Detector, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-93-179-E, Also in Nucl. Instrum. Meth. A338 (1994), 185.

130. First Generation of Leptoquark Search in P Collision at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-93-340-E, Also in Phy. Rev. Lett. 72 (1994), 965.

131. Rapidity Gaps Between Jets in P Collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-94-005-E, Also in Phy. Rev. Lett. 72 (1994), 2332.

132. Search for the Top Quark in P collisions at = 1.8 TeV, S. Abachi et al. (D0 Collaboration), Fermilab-Pub-94-004-E, Also in Phy. Rev. Lett. 72 (1994), 2138.

133. E823 (D0 upgrade); Magnetic Tracking, S. Abachi et al. (D0 Collaboration), Fermilab-D0-UPGRADE-E-823, 1993.

134. The D0 Showerlibrary-Version 2.0, W.G.D. Dharmaratne, R. Raja, C. Stewart, Pub. D0 Collaboration, D0 Note 1370, May 1993.

135. Reconstruction of the Calorimeter Response-Test Beam Load 2, W.G.D. Dharmaratne, Pub. D0 Collaboration, D0 Note 1731, May 1993.

136. On Stability of Response and Gain Corrections in Load 2 Test Beam Data, W.G.D. Dharmaratna, Pub. D0 Collaboration, D0 Note 1725, May 1993.

137. Design, Construction and Performance of the Electromagnetic module of the D0 end Calorimeter, H. Aihara et al. (D0 Collaboration-Test Beam Group) , Nucl. Instrum. Meth., A 325, (1993), 393.

138. Beam Tests of the D0 Uranium Liquid Argon End Calorimeters, S. Abachi et al. (D0 Collaboration-Test Beam Group), Nucl. Instrum. Meth., A 324, (1993), 53 .

139. Effect of Dead Materials on Calorimeter Response and Monte Carlo Simulation, W.G.D. Dharmaratna, Proceedings of III International Conference on Calorimetry in High Energy Physics, Corpus Christi,Texas, Sep. 1992.

140. CCEM Response Vs - Test Beam Load II, W.G.D. Dharmaratna and Terry Heuring, Pub. D0 Collaboration, D0 Note 1577, Dec. (1992).

141. D0 End Calorimeter Response to Muons and “ ” ratio-Test Beam Load I, W.G.D. Dharmaratna, M. Goforth, R. Madden and H. Piekarz, Pub. D0 Collaboration, D0 Note 1351, Jan. 1992.

142. Gluon Fusion as a Source for Massive Quark Polarization, W.G.D. Dharmaratna and G.R.Goldstein, Phy. Rev. D, Vol. 41, (1990), 1731.

143. Massive Quark Polarization in Quantum Chromodynamics Subprocesses, W.G.D. Dharmaratna, DOE/ER/40085-18mc(microfiche), Also in UMI-90-21633-mc, (1990).

144. Massive Quark Polarization in QCD Subprocesses, W.G.D. Dharmaratna, G.R.Goldstein and G.A.Ringland, Zeits. f. Phys. C, Vol. 41 (1989),673.

145. Gluon Fusion as a Source for Massive Quark Polarization, W.G.D. Dharmaratna and G.R.Goldstein, Proceedings of 8th international Symposium on High Energy Spin Physics, Univ. of Minnesota, Ed. J.Heller, Sep. (1988), 744.

146. Inclusive reactions with three polarized particles, G.R.Goldstein, W.G.D. Dharmaratna, M.J.Moravcsik and G.A.Ringland, Int'l J. Mod. Phy. A, Vol. 3, No. 8 (1988), 1847.

147. Hyperon Polarization in Inclusive Production Processes, W.G.D. Dharmaratna, G.R.Goldstein and G.A.Ringland, Proceedings of 7th International Symposium on High Energy Spin Physics, Protvino (USSR) Sep. (1986).

148. The Thermal Conductivity of Three Fluorozirconate Glasses, K.A. McCarthy, H.H.Sample and W.G.D. Dharmaratna, J. Non-Crystalline Sol. 64 (1984), 445.

149. Electrical Conductivity Characteristics of Ferric Metavanadate, K. Tennakone and W.G.D. Dharmaratna, J. Phys. D (GB), Vol. 16, No. 5 (1983),855.

150. Semiconductor to Metal Transition in Ferric Molybdate, K.Tennakone and W.G.D. Dharmaratna, J. Natn. Sci. Coun. Sri Lanka, Nov. (1983), 123.

151. Experimental and Theoretical Study of Electronic Conduction in -doped Prussian Blue. K.Tennakone and W.G.D. Dharmaratna, J.Phys. C (GB), Vol. 16, No. 29 (1983), 5633.

152. Conductivity Transition in Ferric Tungstate, K. Tennakone and W.G.D. Dharmaratna, J. Chem. Soc. Faraday Trans. II (GB), Vol.78 (1982), 1699.

153. Stabilization of Cuprous Oxide Photocathode in Aqueous Thiocyanate Solution by Aliphatic Alcohols, K. Tennakone, W.G.D. Dharmaratna and S.C.Jayewardena, J. Chem. Soc. Faraday Trans. I, Vol.78 (1982), 2279.

154. Corrosion Mechanism of Cuprous Oxide/Iodide Solar Electrochemical Cell, K. Tennakone, W.G.D. Dharmaratna and S.C. Jayewardena, Jpn. J. Appl. Phys. Part I (Japan), Vol. 21, No. 1 (1982), 209.

155. Semiconduction in Ammonium Phosphomolybdate, K.Tennakone, W.G.D. Dharmaratna and S.C. Jayewardena, Phys. Status Solidi (a) (Germany), Vol. 69, No. 1 (1982), 129.

156. Electrical Conduction in Lead Bromode, K.Tennakone and W.G.D. Dharmaratna, Phys. Status Solidi (a) (Germany), Vol. 70, No. 1 (1982),5.

CONFERENCE PUBLICATIONS

1. A preliminary study on hearing problems of workers due to exposure of high occupational noise for a long period, S.M.N. Sethunga, U. Abeysuriya, J.A.P. Bodhika, W.G.D. Dharmaratna, S.A. Wickramasinghe, Proc. 6th RISTCON, Univ. of Ruhuna, Sri Lanka, 2019.

2. Sound Absorption characteristics of two selected fruit plants, Anacardium occidentale (cashew) and Mangifera indica (mango), measured by reverberation room method, Proc. 6th RISTCON, Univ. of Ruhuna, Sri Lanka, 2019.

3. Characteristics of thunder pertinent to tropical lightning, J.A.P. Bodhika, W.G.D. Dharmaratna, Mahendra Fernando, Vernon Cooray, 34th Int. Conf. on Lightning Protection (ICLP) Sep 2018, Poland.

4. Hearing threshold shift of workers in metal quarries and crushers due to high occupational noise exposure, S.M.N. Sethunga, U. Abeysuriya, J.A.P. Bodhika and W.G.D. Dharmaratna, 5th RISTCON 2018

5. An automated device to release a desired volume of a liquid from a container, A.H.H. Hasanga, W.G.D. Dharmaratna, S.S. Abeywickrama and E.M. Ranatunga, 5th RISTCON 2018.

6. Traffic volume pattern and its correlation to traffic noise in Matara city, N.D. Amarasingha, I. Darshana, M.K. Abeyratne, J.A.P. Bodhika and W.G.D. Dharmaratna, Proceedings of 5th, RISTCON 2018.

7. Noise pollution in Matara city, S.M.N. Sethunga, J.A.P. Bodhika and W.G.D. Dharmaratna, RISTCON 2017, Jan. 2017

8. Study on noise exposure of train passengers in Sri Lanka, S.M.N. Sethunga, J.A.P. Bodhika and W.G.D. Dharmaratna, RISTCON 2017, Jan. 2017

9. A novel device for bending PVC pipes for plumbing purposes, N.A.A.K. Sanjaya, W.G.D. Dharmaratna, S.S. Abeywickrama and E.M. Ranatunga, RISTCON 2017, Jan. 2017

10. Noise level exposure in school class rooms. S.M.N. Setunga, J.A.P. Bodhika and W.G.D. Dharmaratna, Published in the Proceedings of RISTCON 2016, 2016

11. Electricity consumption patterns in households in selected regions in Sri Lanka, W.G.D. Dharmaratna, L.J.M.S.S.B. Balalla, Published (poster) in the Proceedings of RISTCON 2016, 2016

12. Properties of CdS thin films prepared using the electro-deposition technique for applications in CdS/CdTe solar cells. D.A. Madarasinghe, G.D.K. Mahanama, W.G.D. Dharmaratna, D. Jayasundara, Published in the Proceedings of RISTCON 2015, Jan. 2015

13. Traffic noise mapping in Tangalle city – Sri Lanka, S.M.N. Setunga, J.A.P. Bodhika and W.G.D. Dharmaratna, Published in the Proceedings of RISTCON 2015, Jan. 2015.

14. A priliminary study of the features of acoustic pressure pulses of lightning, J.A.P. Bodhika, M. Fernando, Vernon Cooray, W.G.D.Dharmarathna Proceedings of Proceedings of ICLP 2014 (International Conference on Lightning Protection), Shanghai, China, pp 2019-2023.

15. Reduction of traffic noise due to improved road conditions: Evidence from Matara & Hambantota, Sri Lanka, S.M.N. Sethunga, J.A.P. Bodhika, W. G. D. Dharmaratne, Proceedings of the 2nd International Conference on Cities, People & Places-ICCPP, 31-02 November 2014. Colombo, Sri Lanka, pp 208-216.

16. Preliminary results of a study on health impacts on human beings due to long term exposure to heavy noise, S.M.N. Setunga, J.A.P. Bodhika and W.G.D. Dharmaratna, Published (abstract) in the Proceedings of the One Health International Conference, Sep. 2014, Univ. of Peradeniya, Sri Lanka

17. Traffic noise contour mapping in Galle city, Sri Lanka, S.M.N. Sethunga, J.A.P. Bodhika, W.G.D. Dharmaratne. Proceedings of the 5th International Conference on Sustainable Built Environment (ICSBE-2014) on green technology and green energy, Kandy Sri Lanka. pp 1-8 .

18. Preliminary results of a study of levels of Noise pollution and its Health impacts due to school western bands, S.M.N. Sethunga, J.A.P. Bodhika, W. G. D. Dharmaratne, Proceedings of the 1st Wayamba University International Conference, Sri Lanka, 29-30 August - 2014, pp 45.

19. Measurement of the transverse momentum distribution of Z bosons decaying to dimuons in pp collisions at center-of-mass energy of 8 TeV, D. Acosta, D. Bourilkov, G.P Di Giovanni, A. Kropivnitskaya, K. Mazumdar, N. Wickramage and W.G.D. Dharmaratna, Published in the Proceedings of RISTCON 2014, Jan. 2014.

20. Preliminary results on the preparation of CdS thin films using electro-deposition technique for applications in CdS/CdTe solar cells, D.A. Madarasinghe, G.D.K. Mahanama, W.G.D. Dharmaratna, Published in the Proceedings of RISTCON 2014, Jan. 2014.

21. Preliminary results on the preparation of CdTe thin films using electro-deposition technique for applications in CdS/CdTe solar cells, D.A. Madarasinghe, G.D.K. Mahanama, W.G.D. Dharmaratna, Published in the Proceedings of 10th Academic Session, Univ. of Ruhuna, Mar 2014.

22. Preliminary results of noise level measurements inside passenger buses in southern province of Sri Lanka, S.M.N. Setunga, J.A.P. Bodhika and W.G.D. Dharmaratna, Published (abstract) in the Proceedings of RISTCON 2014, Jan. 2014.

23. Design and construction of a temperature monitoring system for a noodles dryer at a local industry, B.H.B.M. De Silva, W.G.D. Dharmaratna, K.K.A.S. Yapa and J.A.P. Bodhika, Published (abstract) in the Proceedings of RISTCON 2014, Jan. 2014.

24. Design and construction of a display system for systematic monitoring of the noodles steaming process at a local industry, N.V.D.P. Priyadarshani, W.G.D. Dharmaratna, K.K.A.S. Yapa and J.A.P. Bodhika, Published (abstract) in the Proceedings of RISTCON 2014, Jan. 2014.

25. Design and construction of an automated rain gauge, W.W. Rukshan Medis, W.G.D. Dharmaratna, J.A.P. Bodhika and S.S. Abeywickrama, Published (abstract) in the Proceedings of RISTCON 2014, Jan. 2014.

26. Traffic noise contour mapping in Matara city – Sri Lanka, S.M.N. Setunga, J.A.P. Bodhika and W.G.D. Dharmaratna, Published in the proceedings of “International Conference on Cities, People, Places”, Colombo, Sri Lanka, Oct. 2013

27. A preliminary study on the optimization of electrochemically deposited CdS layers for applications in CdS/CdTe solar cells, Madarasinghe D.A, Mahanama G. D. K., Dharmaratna W.G.D., Proc. 10th Academic Session, Univ. Ruhuna, Mar 2013.

28. Variability of noise levels at the main bus stand at Matara, Sri Lanka: Preliminary results, S.M.N. Setunga, J.A.P. Bodhika and W.G.D. Dharmaratna, Proc. 9th Ruh. Sci. Sym., Jan 2013.

29. Wireless Multiple Choice Question/Answer Evaluation System for Classrooms, V.H.P. Vitharana, S.S. Abeywickrama, W.G.D. Dharmaratna and K.K.A.S. Yapa, Proc. 9th Ruh. Sci. Sym., Jan 2013.

30. Localization of Thunder Source and Reconstruction of Lightning Channel Geometry Using Sound Data, Bodhika J.A.P., Dharmarathne W.G.D., Mahendra Fernando and Vernon Cooray, 7th Asia-Pacific International Conference on Lightning, Chengdu, China, Nov. 1-4, 2011

31. Managements of energy use during tire production at Loadstar factory using a homemade message display unit, K.G.K.U.gamage,M.Kodikara,W.G.D. Dharmarathna,K.K.A.S.Yapa,S.S.Abeywickrama, Proc. 8th Ruh. Sci. Sym., Dec. 2011

32. A preliminary study on the attenuation of sound over the ground level, R.M.R.M.Jayathilaka, J.A.P.Bodhika, W.G.D.Dharmarathna, Proc. 8th Ruh. Sci. Sym., Dec. 2011

33. A Practical device to reduce the wastage of cooking gas, W.M.B.P.Weerasinghe, W.G.D.D. Dharmarathna and E.M.Ranatunga, Proc. 7th Sci. Sym., Uni. Ruhuna,, Jan 2010.

34. Programming of a simple molecular dynamic simulation using open source software

R.M.R.M. Jayathilaka, K.K.A.S.Yapa and W.G.D. Dharmarathna, Proc. 7th Sci. Sym., Uni. Ruhuna, Jan 2010.

35. Construction of an efficient Parabolic Solar Cooker at Low Cost, (Poster),W.G.D. Dharmaratna, K.A.C. Perera, Proc. 6th Sci. Sym., Uni. Ruhuna, Jan 2009

36. A low cost automated device to release a certain volume of liquid, E.M. Ranatunga and W.G.D. Dharmatatna, Proc. 6th Sci. Sym., Uni. Ruhuna, Jan 2009

37. A comparison of thunder signatures between cloud and ground flashes associated with audio frequency pressure variations over Sri Lanka, J.A.P. Bodika, M. Fernando, V. Cooray and W.G.D. Dharmaratna, 29th International Conference on Lightning Protection, Uppsala, Sweden, June 2008.

38. A simple device to reduce the wastage of cooking gas, E.M. Ranatunga and W.G.D. Dharmaratna, Ruhuna Sci. Journal, Vol. 1, 2006. (Also in the proceedings of 62nd Annual Sessions of SLAAS Dec. 2006- in abstract form)

39. Development of rainfall forecasting model for Sri Lanka using artificial feed-forward neural network, W.G.D. Dharmaratna and L.D. Premarathna, 2nd Science Symposium, Univ. of Ruhuna, Matara, Aug. 2004.

40. A possibility of saving energy in cooking rice, W.G.D. Dharmaratna and E.M. Ranatunga, 59th Annual Session of SLAAS, Dec. 2003.

41. Enhancement of electrical conductivity of molybdenum incorporated TiO due to sintering, W.G.D. Dharmaratna and P.W.C. Roshan, 58th Annual Session of SLAAS, 2002.

42. A correlation between activation energy and light absorption of WO incorporated TiO , W.G.D. Dharmaratna, P.W.C. Roshan, W.P. Siripala and L.B.D.R.P. Wijesundera, Proc. 1st Sci. Sym., University of Ruhuna, Dec. 2002.

43. Peculiar characteristics in electrical conductivity of WO incorporated TiO , W.G.D. Dharmaratna and P.W.C. Roshan, 18th Technical Session of IPSL, Mar. 2002.

44. Enhancement of electronic conduction of WO incorporated TiO due to sintering, W.G.D. Dharmaratna and P.W.C. Roshan, 57th Annual Session of SLAAS, 2001.

45. Alteration of electrical conduction properties of TiO using V O , V O and Cr O , Proc.,W.G.D. Dharmaratna and K.N. Cems, 17th Technical Session of IPSL, Mar. 2001

46. Effects of Chromium Ion Doping on the Conduction Properties of TiO , W.G.D. Dharmaratna and K.N. Cems, Proc., 16th Technical Session of IPSL, Mar. 2000, 34-41.

47. Effects of sintering temperature on chromium doping in , W.G.D.Dharmaratna and K. N. Cems, Proc. of 56th Annual session of SLAAS, 2000.

48. Effects of Chromium Ion Doping on the Conduction Properties of , W.G.D.Dharmaratna and K. N. Cems,Proceedings of 15th Technical Session of IPSL, 1999.

49. Alteration of Electronic Structure of due to Vanadium Doping, W.G.D.Dharmaratna and K. N. Cems, Proceedings of 5th Workshop on Low Cost Electronic Materials, Solar Cells and Renewable Energy Sources, Colombo, Sri Lanka, Feb. 2000.

50. Enhancement of Electronic Conduction in due to Chromium., W.G.D.Dharmaratna and K. N. Cems, Proceedings of 55th Annual Session of SLAAS, 1999. (Abstract)

51. Effects of Mo6+ Doping on Electrical Conductivity of , W.G.D.Dharmaratna and P.R.T.N. De Silva, Proceedings of 14th Technical Session of IPSL, 1998.

52. Effects of V5+ Doping of on its Electrical Conductivity, Properties, W.G.D.Dharmaratna and P.R.T.N. De Silva, Proceedings of 54th Annual Session of SLAAS, 1998. (Abstract)

53. Using Top Quark for Testing QCD Predictions and for Searching new Physics, W.G.D.Dharmaratna, Proceedings of 13th Technical Session of IPSL, 1997.

54. The Influence of Interstitial Water on Electronic Conduction and Activation Energy in Zirconium Ferrocyanides, W.G.D. Dharmaratna and D.M.W. Daaundasekara, Proceedings of 53rd Annual Session of SLAAS, 1997. (Abstract)

55. The Activation of Electronic Conduction in Cobolt Ferrocyanide by Interstitial Water, W.G.D. Dharmaratna and D.M.W. Daundasekera, Proceedings of 52nd Annual Session of SLAAS, 1996. (Abstract)

56. The Random Grid Search: A simple way to find Optimal Cuts, N. Amos, C. Stewart, P. Baht, C. Cretsinger, E.Won, W. Dharmaratna and H.B. Prosper, Prepared for International Conference on Computing in High-energy Physics (CHEP 95), Rio de Janeiro, Brazil, 18-22 Sep 1995.

Published in *Rio de Janeiro 1995, Computing in high energy physics '95* 215-219

Position Held

Dean (2016 Aug. – 2020 Feb) – Faculty of Technology, University of Ruhuna

Dean (2010 – 2016 July) – Faculty of Science, University of Ruhuna

Board Member, PGIS (2012 – 2016) – Science Standing Committee Nominee to Board of PGIS

Director (2007- 2011) -- Postgraduate Studies, University of Ruhuna

Head (1994-2004) -- Dept. of Physics, University of Ruhuna

President (2004)-- Ruhuna Univ. Science Teachers Association

President (2002/2003)—Institute of Physics, Sri Lanka

President (2001/2002)—Institute of Physics, Sri Lanka

Committee Member (1997-2000)-- SLASS, Section E1

Vice-President (1998 - 1999) -- Institute of Physics, Sri Lanka

Council Member (1997, 2000, 2003) -- Institute of Physics, Sri Lanka

President (1997-2001)-- Ruhuna Univ. Science Teachers Association

Services to the University

1) Pioneering Dean- Faculty of Technology, University of Ruhuna (Aug. 2016 – Feb 2019)

2) Dean- Faculty of Science, University of Ruhuna (2010- Jul. 2016)

3) Senate Committee, Evaluation of Applications for Emeritus Professor Posts (2011-2020)

4) Management Committee, Distance Education Unit (2012-2016)

5) Senate Nominee to the Council - University of Ruhuna (2007-2010)

6) Director, Graduate Studies-University of Ruhuna (2007-2011) - Established the Faculty of Graduate Studies.

7) Senate Committee Chairman: Higher Degrees By-Law Review Committee (2009- 2020)

8) Senate Committee Chairman: University Logo Correction (2009)

9) Senate Committee Chairman: Conduct of University Examinations and Release of Results (2009)

10) Editorial Board – Ruhuna University Journal (ROHANA) (2009-2010)

11) Editor in Chief – Ruhuna Journal of Science (2006- to date)

12) Senate Committee Chairman: External Degree Programme Review (2008)

13) Disciplinary Board – University of Ruhuna (2008)

14) Faculty representative to University Quality Assurance Unit (2008 to 2016)

15) Senate Committee Chairman: Verification of grades for undergraduate examinations (2008)

16) Senate Committee Chairman: Design the format for University Transcripts (2008).

17) Redesigned Degree/Diploma Certificates (2008)

18) Member of the Convocation Committee – Photography and Video (2007 & 2016)

19) Senate Committee Member- Work Norms & Annual Salary Increment for Academics – 2004

20) Senior Treasure-Student Union, Faculty of Science, 2002/2003/2004.

21) Staff development center 2000/2001, Executive Committee Member until 2004

22) Chairman, Organizing Committee, Second Science Symposium, Faculty of Science- 2004

23) Head of the Department – from Sep. 1994 – 2004.

24) Chairman, Staff Development Unit, Faculty of Science – 2003-2004

25) Chairman, Organizing Committee, First Science Symposium, Faculty of Science- 2003

26) Member of the organizing committee, First Academic Sessions, University of Ruhuna, 2003

27) Chairman of the Logistic and Public Services Committee- Silver Jubilee-2003

28) Senate Committee Member- Nonacademic Services Problems- 2002

29) Examination offenses investigation – 1996-1999

30) External Degree - Examination offenses investigation – 1998-2000

31) Establishment of a staff development unit - 1999

32) Member of the Technical Evaluation Committee for Computers- 1998-1999

33) Served in a large number of selection committees for Labourers to Senior Lecturers and Professors. Furthermore, set the question papers for relevant selection examinations.

34) Served in a number of various committees in Faculty of Science (Time-tables and Examination time tables for several (five) years, Course units development, Students Request committee etc.)

35) Member of the Students Disciplinary Board – for a couple of years since 2000

36) Resource Person- CV writing workshop, Carrier Guidance Unit (Oct. 2000)

37) Advisor- Kala Parshadaya, University of Ruhuna, 2000

38) Editorial Board - ROHANA magazine 2000/2001 and 2009-to date

39) Technical evaluation committee for computers- 2000/2001

40) Committee Member – Establishment of the Faculty of Engineering

41) President Ruhuna University Science Teachers Association- from May1997- Aug. 2001

42) Served in a number of Committees appointed by Faculty of Science (Since 1993)

43) Student Counselor – 1980/81 and 1979/80

44) Member of the Sports Advisory Board – 1980/81

NATIONAL ACTIVITIES

1) Chairman, Subject Benchmark Committee on Physics and Electronics - 2020

2) A stall on Particle Physics and CERN collaboration was held, with posters and videos at the “Shilpa Sena” exhibition held at BMICH-2019

3) Leading the Sri Lanka – CERN Collaboration – since 2018.

Made the presentation to CMS collaboration to obtain the full membership of CMS experiment in 2017.

4) Chaired the Local Organizing Committee, 2nd CERN-South Asian High Energy Physics Instrumentation, Feb 20-21 2019

5) Chairman, NSF Working Committee on Basic Sciences (July 2016 – July 2019)

6) National Committee for Physics Syllabus Review - GCE A/L Examination 2016)

7) Invited Participant- ln-houses Seminars at the National Institute of Fundamental Studies, May 2018 and contribute your expert opinion to further develop and finalize the Basic Science Research Policy- May 2018

8) Committee member – development of the Basic Science Research Policy for Sri Lanka – 2017/2018

9) Committee Member, Establishment of National Science Centre, Sub-Committee “Big Bang to Today”

10) Chairman, Experts Committee, Thrust Area 10: Basic Sciences, Emerging Technologies and Indigenous Knowledge, Ministry of Technology and Research, 2014

11) Board Member, PGIS (2012 – 2016) – Science Standing Committee Nominee to Board of Postgraduate Institute of Science, Peradeniya.

12) Made a significant contribution in introducing High Energy Physics at CERN in Sri Lanka (Since 2006). Produced the first PhD from a Sri Lankan University based on Research at CERN.

13) Served as a Selection Committee member for the post of Professor in Several Universities.

14) Evaluated applications for the post of Professor/Associate Professor in several universities.

15) Member of National Research Council (NRC) Review Committee – 2014

16) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2016

17) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2014

18) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2013.

19) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2011.

20) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2010.

21) National Committee for Physics Syllabus Review - GCE A/L Examination 2011 (appointed in 2009)

22) Teachers Guide preparation committee, GCE A/L Examination 2011 (in 2009/2010)

23) Set sample questions for A/L examination 2011, appointed by Dept. of Examination (2009)

24) Member of the Subject (Physics) Committee of the University Grant Commission (2009)

25) Served as Member of the Subject Review Committee (QAAC) for the review of Dept. of Physical Science, South Eastern University (2009)

26) Organized the Sri Lankan Astronomy and Astrophysics Olympiad Competition- 2009 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

27) Organized the Sri Lankan Junior Science Olympiad Competition- 2009 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

28) Organized the Sri Lankan Physics Olympiad Competition- 2009 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

29) Organized a preliminary round of the Interschool quiz competition – 2009 at the Department of Physics, which is an activity of the International Association of Lions Clubs.

30) Member of the Coordinating Committee, Sri Lanka Institute of Tourism & Hotel Management, 2009

31) Member of the Editorial Board – IPSL Journal of Physics (since 1999)

32) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2008.

33) Served in the panel of setters for A/L Physics Examination- 2008.

34) Served as a referee to Annual Research Symposium –2008, University of Kelaniya.

35) Served as a member of the Board of Consultants – Physics Syllabus for year 10-13. Appointed by NIE, 2008

36) Organized the Sri Lankan Astronomy and Astrophysics Olympiad Competition- 2008 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

37) Organized the Sri Lankan Junior Science Olympiad Competition- 2008 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

38) Organized the Sri Lankan Physics Olympiad Competition- 2008 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

39) Organized a preliminary round of the Interschool quiz competition – 2008 at the Department of Physics, which is an activity of the International Association of Lions Clubs.

40) Member of the Advisory Board – Physics Syllabus for year 10-13. Appointed by NIE. (2007)

41) Organized the Sri Lankan Astronomy and Astrophysics Olympiad Competition- 2007 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

42) Organized the Sri Lankan Physics Olympiad Competition- 2007 at the Department of Physics, University of Ruhuna, organized by the Institute of Physics, Sri Lanka.

43) Organized a preliminary round of the Interschool quiz competition – 2007 at the Department of Physics, which is an activity of the International Association of Lions Clubs.

44) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2007.

45) Served in the panel of setters for A/L Physics Examination- 2007.

46) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2006.

47) Served in the panel of setters for A/L Physics Examination- 2006.

48) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2004.

49) Served in the panel of setters for A/L Physics Examination- 2004.

50) Co-controlling Chief Examiner for Physics - GCE/AL Examination –2003.

51) Served in the panel of setters for A/L Physics Examination- 2003.

52) Have served as an External Examiner for M. Phil./Ph.D. Degree in Physics in University of Colombo, University of Kelaniya, University of Peradeniya (PGIS).

53) Served as a Reviewer for Initial Proposals for QEF (7-proposals).

54) Served as a Reviewer for evaluation of QEF Split Proposals (2-proposals)

55) Committee Member – SLAAS Section E1, year 2000.

56) Council Member – Institute of Physics, Sri Lanka, year 2000.

57) Served in the Organizing Committee for the 5th Workshop on Low Cost Electronic Materials, Solar Cells and Applications of Renewable Energy Sources, Jan. 2001

58) Have served as referees for Journal/Conferences in other Universities and NSF.

59) Have evaluated applications for Professor of Physics in other Universities.

60) Have served as a UGC nominee for selection committees in other Universities.

61) Organized several Workshops in the Department of Physic for Advanced Level Physics Teachers in Southern Province. Also, served as a resource person.

62) Served as a Visiting Lecturer- University of Sabaragamuwa-1999

63) Visiting Lecture (Solid State Chemistry)-Institute of Chemistry, 2000-2004.

64) Served in the Organizing Committee for the 5th Workshop on Low Cost Electronic Materials, Solar Cells and Applications of Renewable Energy Sources. Jan. 2000

65) GCE A/L Technology Curriculum Review Committee, NIE, 1998.

66) Served as a Referee, IPSL Journal of Physics, 1999/2000

67) Served in the organizing committee for the workshop on Graduate Unemployment organized by RUSTA, Matara, 1996.

INVENTIONS AND INNOVATIONS

1) Universal Cuff for Blood Pressure Meters, won the first place at the Southern Province Competition and Bronze medal at the National Competition at “Sahasak Nimavum – 2019”, Applied for the Patent.

2) Noval Device for Bending PVC Pipe for Plumbing Purposes, N.A.A.K. Sanjaya, W.G.D. Dharmaratna, and E.M. Ranatunga, Received the Second Place – University and Tertiary Educational Institutes Category Under the Technical Field of Engineering, National Exhibition for Inventions and Innovations, Sahasak Nimavum 2017.Received the First Place – Southern Province Exhibition held at university of Ruhuna - 2017

POPULAR ARTICLES AND LECTURES

1) Invited Oration – The 16th Academic Sessions and 15th Vice Chancellor’s Awards Ceremony of University of Ruhuna will be held on 6th March 2019

2) Popular Article (The Universe- a challenge for Physicist) in Vidusara –June 23rd 2010

3) Invited Lecture – as the Chief Guest- Science Day, Sujatha Vidyalaya, Matara, Jun. 2009.

4) Invited Lecture- Delivered the main lecture at the World Science Day celebration at Matara, Organized by Vidatha Center, Matara and Divisional Secretariat, Matara, Nov. 2007

5) Invited Lecture – as the Chief Guest, Science Day, Mahinda College, Galle- 2007

6) Invited Lecture – as the Chef Guest, at the closing data of two-week Astronomy Workshop, Vijitha Central College, Dickwella, Oct. 2nd, 2006.

7) Invited Lecture – Main Lecture at the “Science Day – 2006” , Sujatha College, Matara, Apr. 04th, 2006.

8) Invited Lecture – Invited by Astronomical Society, Dickwella Central College, Mar. 16th, 2004

9) Chairman – Ruhuna Information Technology Society- 2004

10) Invited Lecturer- Science Day, Rahula College, Matara, Apr. 29th, 2004

11) Organized a training programme on Electronics at Rahula College as requested by Electronic club at Rahula College, Feb 21st, 2003

12) Organized a two-day workshop for Physics Teachers at the Department of Physics in collaboration with Institute of Physics, (also served as a resource person), Nov. 6-7, 2003.

13) Invited Lecture – as the Chief Guest at Computer Day, Technical College, Matara, Sep. 2003.

14) Invited Lecture – A Lecture on Physics for A/L students at Dharmasoka College, Ambalangoda, organized by alumini Association of Univ. of Peradeniya, Feb. 09th, 2003

15) Invited Lecture – St. Thomas College, Matara, May 19th, 2002.

16) Invited Lecture – As the Guest of Honour at the Science Day, Sujatha Vidyalaya, Nov. 28th, 2002

17) "Elementary Particles Discovered by Physicists in Twentieth Century” – Bauthikavidya Magazine –by IPSL (to be published in 2001)

18) Live radio programme- for A/L Physics students. Invited by RDB (July 2001)

19) Lecture at Monaragala- Solar and wind energy for rural development, YSF, NASTEC (May 2001)

20) Invited Lecture-Space Science Society, Mahinda College, Galle (2001)

21) Organized a training session at the Electronic Workshop held on May. 25th, 2000 at Rahula College, Matara.

22) Resource person – Regional Workshop on Project Work in Science at Ruhuna University, organize by SLAAS, May 15th, 2000.

23) Invited Lecture-Science Day, St. Marry's Convent, Matara (Oct. 2000)

24) Invited Lecture-Astronomical Society, Sujatha College, Matara (Dec. 2000)

25) Invited Lecture- Science day, St. Marry’s College, Mathugama, (Apr. 2000).

26) “BASIC CONSTITUENTS OF THE UNIVERSE”- Magazine (THE HORIZON) of the Physics Society, University of Ruhuna, 1995.

27) “USE OF COMPUTERS FOR THE DEVELOPMENT OF PHYSICS”- Magazine (UNICOM 96) of the Computer Society, University of Ruhuna, 1996.

28) Discussion on the “FORMATION OF THE UNIVERSE”- Magazine (DIYATHA) of Zoology Society, University of Ruhuna, 1997/98.

29) Invited Lecture- Science Association, Rahula College, Matara, (Jan. 1999).

30) Invited Lecture- Physics Society, University of Ruhuna, (1999).

31) Invited Lecture- Science Week, Rahula College, Matara, (May 1998).

32) Invited Special Lecture on Louis Pasteur- Alliance Francaise De Matara, (Mar. 1997).

33) Invited Lecture-Science Society, Rahula College, Matara, (Jan. 1997)

34) Invited Lecture- Science Day, Sujatha Balika Maha Vidyalaya, Matara, (Mar. 1996).

35) Invited Lecture as the Chief Guest- Science Day, Our Lady of Victories Convent Moratuwa, (Sep. 1994)

36) Invited Lecture- Physics Society, University of Ruhuna, 1994.

37) Invited Lecture- Mount Holyok college, Iowa, USA., 1989.

38) Invited Lecture- Boston College, Boston, USA, 1989.

CONFERENCES PARTICIPATED AND INVITED TALKS

1) CMS WEEK – 2019 – Dec 10-19, 2019, Bangkok, Thailand

2) Invited Talk: Fundamental Building Blocks of the Universe: have we discovered them? Sep 11th, 2019 at General Sir John Kotelawala Defense University, 12th International Research Conference, KDU -IRC (Basic Science and Applied Science Session)

3) Invited oration at the 16th Academic Sessions and 15th Vice Chancellor’s Awards Ceremony of University of Ruhuna was delivered on ‘Fundamental Building Blocks of the Universe’, Mar 2019

4) 2nd CERN-South Asian high Energy Physics Instrumentation (SAHEPI -2) Workshop on Detector Technology and Applications. Held in Colombo, Sri Lanka from Feb 20-21, 2019. Chairperson, Local Organizing Committee. Presented the status report.

5) 6th Ruhuna International Science and Technology Conference - RISTCON – 2019, Jan 2019 – Member of the Advisory Committee.

6) Invited Oration- Fundamental Building Blocks of the Universe, RISTCON – 2019

7) Research Management Workshop, Nov. 2017, Organized by NSF, Sri Lanka

8) CMS Collaboration Meeting and CMS Physics Week, Rio de Jeneiro, Brazil, Sep. 2017, Presented “An application seeking CMS membership for a consortium of Sri Lankan Physicist”

9) South Asian High Energy Physics Instrumentation Workshop on Detector Technology and Applications, Kathmando University, Nepal, June 2017Presented the “Overview of HEP Activities in Sri Lanka”,

10) CERN, European Organization for Nuclear Research, Visited on Invitation from the Ministry of Science, Technology and Research, leading the Group of Sri Lankan Physicists for discussions at CERN, May 2017, Participated in discussions with the CMS group Leaders, Minister of Science and Technology and the Sri Lankan Ambassador to Switzerland.

11) BICOST 2016, Colombo, Presented the working committee report on FOCUS Area 10: Action plan

12) 3rd RISTCON 2016, University of Ruhuna

13) 2nd RISTCON 2015, University of Ruhuna

14) BICOST 2014, Colombo, Presented the committee report on FOCUS Area 10: Basic Science, Emerging Technologies and Indigenous Knowledge

15) 1st RISTCON 2014, University of Ruhuna

16) 10th Academic Session, Univ. Ruhuna, Mar 2013.

17) 9th Ruh. Sci. Sym., Jan 2013.

18) 7th Asia-Pacific International Conference on Lightning, Chengdu, China, Nov. 1-4, 2011

19) 8th Ruh. Sci. Sym., Dec. 2011

20) 29th International Conference on Lightning Protection, Uppsala, Sweden, A research student (J.A.P. Bodika) made a presentation, June 2008

21) CMS Collaboration Meeting and CMS Physics Week, CERN, Switzerland, Oct. 2006

22) 62nd Annual Sessions of SLAAS, A research student (E.M. Ranatunga) made a presentation, Dec. 2006

23) Annual U.S. CMS Collaboration Meeting and CMS Physics Week, Fermilab, USA, Apr. 2005

24) 2nd Science Symposium, Univ. of Ruhuna, A research student (L.D. Premarathna) made a presentation, (2004)

25) 59th Annual Sessions of SLAAS, A research student (E.M. Ranatunga) made a presentation, Dec. 2003

26) 58th Annual Session of SLAAS, A research student (P.W.C. Roshan) made a presentation, 2002.

27) 18th Technical Session of IPSL, A research student (P.W.C. Roshan) made a presentation, Mar. 2002.

28) 1st Sci. Sym., University of Ruhuna, A research student (P.W.C. Roshan) made a presentation, Dec. 2002.

29) Workshop on Collaborative Action Research as a strategy for linking higher education and basic education. (July 2001)

30) 57th Annual Session of SLAAS, A research student (P.W.C. Roshan) made a presentation (2001)

31) Invited resource person – Presented a review paper on “ Discoveries in High Energy Physics in the 20th Century” at the 57th Annual Session of SLAAS, Nov. 30th, 2001

32) 17th Technical Session of IPSL. A student (K.N. Cems) made a presentation. (Mar. 2001)

33) Fifth Workshop on Low Cost Electronic Materials, Solar Cells and Renewable Energy Sources, Colombo, Sri Lanka. Served in the Organizing Committee. A student (K.N. Cems) made a presentation. (Feb. 2000)

34) 16th Technical Session of IPSL. A student (K.N. Cems) made a presentation. (Mar. 2000)

35) 56th Annual session of SLAAS, A student (K.N. Cems) made a presentation (2000)

36) Young Scientist Forum, NASTEC (June 2000)

37) Conference on Space Science & Technology-Applications for National Development”, Colombo, Sri Lanka. (Jan 1999)

38) 13th Topical Conference on Hadron Collider Physics, Tata Institute of Fundamental Research, Mumbai, India. (Jan. 1999)

39) Workshop on Renewable Energy Sources, Peradeniya, Sri Lanka. (1999)

40) 15th Technical Session of IPSL, A student (K.N. Cems) made a presentation (1999)

41) 55th Annual Session of SLAAS, A student (K.N. Cems) made a presentation (1999)

42) Workshop on Renewable Energy Sources, Colombo, Sri Lanka. (Feb. 1998)

43) 14th Technical Session of IPSL. A research student (P.R.T.N. De Silva) made a presentation. (1998)

44) 54th Annual Session of SLAAS, A research student (P.R.T.N. De Silva) made a presentation. (1998)

45) Talk on “Using top Quarks for Testing QCD Predictions and for Searching New Physics, 13th Technical Session of IPSL. (1997)

46) Regional Workshop on Low Cost Electronic Materials and Solar Cells, Colombo, Sri Lanka. (March 1997)

47) 53rd Annual Session of SLAAS, A research student (D.M.W. Daaundasekara) made a presentation. (1997)

48) 52nd Annual Session of SLAAS, A research student (D.M.W. Daaundasekara) made a presentation.1996

49) Fifth Asian Conference on Solid State Ionics, Kandy, Sri Lanka. (Dec. 1996)

50) Invited Talk: “Spin Asymmetries in P Collisions”, D0 (All Jets) Analysis Group Meeting, (1995)

51) Invited Talk: “Possible Improvements on the Electron Calibration in D0 Detector”, FSU group meeting, FNAL, USA. (1994)

52) Workshop on Nuclear Power & Energy Planning, Colombo, Sri Lanka. (1994)

53) Talk on “Effect of Dead Materials on Calorimeter Response and Monte Carlo Simulation”, 3rd International Conference on Calorimetry in High Energy Physics, Corpus Christi, Texas, USA. (1992)

54) 7th Meeting of the American Physical Society- Division of Particles & Fields, Fermilab, Batavia, Illinois, USA. (1992)

55) Talk on “Jet Energy Scale in D0 Detector”, D0 Conference, Lawrence Berkeley National Lab., Berkeley, California, USA. (1991)

56) Invited Talk: “Gluon Fusion as a Source of Massive Quark Polarization”, Dept. of Physics, University of Florida, Tallahassee, USA. (1989)

57) Invited Talk: “Transverse Polarization of Quarks from QCD Processes”, Cornell University, Nuclear Studies Center (CESR), Ithaca NY, USA. (1989)

58) Invited Talk: “Gluon Fusion as a Source of Massive Quark Polarization”, 8TH International Symposium on High-Energy Spin Physics, Minneapolis, USA. (Sep 1988).

Prof. W.G.D. Dharmaratna

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