Department of Radiography/Radiotherapy

Faculty of Allied Health Sciences

Dr. U.J.M.A.L. Jayasinghe


Official Address :

Department of Radiography/Radiotherapy,
Faculty of Allied Health Sciences,
University of Peradeniya,
Augusta Hill, Sri Amarawansa Mawatha
Peradeniya,
Sri Lanka


Email :

ayesh@ahs.pdn.ac.lk


Telephone :

+94-0812387500




  • Ph.D. ( Particle Physics) - University of Oklahoma, Norman, OK, USA June 2013
  • MS (Physics)- University of Oklahoma, Norman, OK, USA June 2009
  • BSc. (Physics Special –2nd Class Upper Division) , Minor : Computer Science, Statistics, University of Peradeniya - May 2005

  • Senior Lecturer - Department of Radiography/ Radiotherapy, University of Peradeniya – January 2015,Present
  • Senior Lecturer (Temporary ) - Department of Radiography/ Radiotherapy, University of Peradeniya – July 2013, December 2014
  • Research Assistant : Fermi National Accelerator Laboratory, Batavia, IL, USA and Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman , OK, USA -July 2009,June 2013
  • Local System Administrator: University of Oklahoma Linux cluster at DØ experiment, Fermi National Accelerator Laboratory, Batavia, IL, USA- July 2009,June 2013
  • Research Assistant : The European Organization for Nuclear Research (CERN), Geneva, Switzerland and Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman , OK, USA - 2009 summer
  • Research Assistant : Fermi National Accelerator Laboratory, Batavia, IL, USA and Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman , OK, USA -July 2009,June 2013
  • Research Assistant : Fermi National Accelerator Laboratory, Batavia, IL, USA and Homer L. Dodge Department of Physics and Astronomy, University of Oklahoma, Norman , OK, USA -July 2009,June 2013


  • Combination of the top-quark mass measurements from the Tevatron collider. CDF and D0 Collaborations (T. Aaltonen (Helsinki Inst. of Phys.) et al.). Jul 2012. 30 pp.

  • Measurement of Leptonic Asymmetries and Top Quark Polarization in ttˉ Production. D0 Collaboration (Victor Mukhamedovich Abazov (Dubna, JINR) et al.). Jul 2012. 8 pp.

  • Combination of searches for anomalous top quark couplings with 5.4 fb−1 of ppˉ collisions. D0 Collaboration (Victor Mukhamedovich Abazov (Joint Institute for Nuclear Research, Dubna, Russia) et al.). Apr 2012. 8 pp. Published in Phys.Lett. B713 (2012) 165-171

  • Combination of CDF and D0 measurements of the W boson helicity in top quark decays. CDF and D0 Collaborations (T. Aaltonen (Helsinki Inst. of Phys.) et al.). Feb 2012. 11 pp. Published in Phys.Rev. D85 (2012) 071106

  • Search for anomalous Wtb couplings in single top quark production in ppˉ collisions at √s=1.96 TeV. D0 Collaboration (Victor Mukhamedovich Abazov (Dubna, JINR) et al.). Oct 2011. Published in Phys.Lett. B708 (2012) 21-26

  • Measurement of angular correlations of jets at s√=1.96 TeV and determination of the strong coupling at high momentum transfers. D0 Collaboration (Victor Mukhamedovich Abazov (Dubna, JINR) et al.). Jul 2012. 10 pp. Published in Phys.Lett. B718 (2012) 56-63

  • Search for the standard model Higgs boson in associated WH production in 9.7 fb−1 of ppˉ collisions with the D0 detector D0 Collaboration (Victor Mukhamedovich Abazov (Dubna, JINR) et al.). Aug 2012. 8 pp. Published in Phys.Rev.Lett. 109 (2012) 121804

  • Combined search for the standard model Higgs boson decaying to bbˉ using the D0 Run II data set D0 Collaboration (Victor Mukhamedovich Abazov (Dubna, JINR) et al.). Jul 2012. Published in Phys.Rev.Lett. 109 (2012) 121802

  • Search for the standard model Higgs boson in the ZH→ννˉbbˉ channel in 9.5 fb−1 of ppˉ collisions at s√=1.96 TeV D0 Collaboration (Victor Mukhamedovich Abazov (Dubna, JINR) et al.). Jul 2012. 9 pp. Published in Phys.Lett. B716 (2012) 285-293

  • Search for Neutral Higgs Bosons in Events with Multiple Bottom Quarks at the Tevatron CDF and D0 Collaborations (T. Aaltonen (Helsinki Inst. of Phys.) et al.). Jul 2012. 10 pp. Published in Phys.Rev. D86 (2012) 091101

  • More (www.nspirehep.net)


  • Worked for the top working group for the measurement of top quark mass in the all hadronic decay channel
  • Collaborated with the Jet Energy Scale group for the derivation of Jet Energy Scale corrections for RunIIB data for the DØ detector
  • Partook in Data Acquisition, which is the most important role in the process of collecting data; and Calorimeter Muon shifts, to collect data in the DØ experiment
  • Summer 2009: Contributed to the group which assessed the radiation effect on the environmental gas mixture of the ATLAS pixel detector at the European Organization for Nuclear Research (CERN), Geneva, Switzerland