• Academic Dissertations
    Title (Ph.D.): Search for heavy Majorana mass neutrinos in same sign e ±e ± + jets events in pp collisions at LHC and Phase I-II Upgrade R&D for CMS HF & HE Calorimetry

    Title (M.Sc.): Characterization of 900 Four-Anode Photomultiplier Tubes for use in 2013 Hadronic Forward Calorimeter upgrade

  • Summary of Qualifications

    • Heavy Majorana Mass Neutrinos in same-sign μ ±μ ± + jets and e ±e ± + jets and e ±μ ±+ jets events in pp collisions
    • Particle detector technologies and instrumentation, and their applications in high energy and nuclear physics
    • Experimental research from developing detectors to the analysis and interpretation of data
    • Experience in:
      • Phase I-II Upgrade R &D for CMS Forward & Endcap Calorimetry
      • Radiation Hard and High Light Yield Scintillating Materials R&D
      • Characterization of Photomultiplier Tubes (PMTs)
      • Development of Secondary Emission Ionization Calorimetry (SE Calorimeters)
      • Development of Novel Cerenkov Detector for Particle Identification
      • Research and development of Directional Cherenkov Detectors
      • Performance studies for Si-PMs
      • Atomic Layer Deposition (ALD) and Thermal Evaporation Techniques
      • CMSSW (CMS Software Framework) & ROOT (Data Analysis Framework)

  • Publications

    • Peer Reviewed Journal Articles
      1. J. Wetzel, E. Tiras, B. Bilki, D. Winn, Y. Onel, 'Radiation Damage and LED Stimulated Recovery Properties of PEN and PET Using Ce(137) and Co(60) Gamma Ray Sources Up To 10 MRad', Journal of Instrumentation, 2016 (in preparation)
      2. E. Tiras, et al., 'The Characterization of PMTs in a novel secondary ionization mode for SE Ionization Calorimetry RandD', Instruments and Experimental Techniques, 2016 (ready to submit, at internal review)
      3. B. Bilki, E. Tiras, J. Wetzel, D. Winn, Y. Onel, 'Secondary Emission Ionization Calorimetry R&D', Journal of Instrumentation, 2016 (in preparation)
      4. B. Bilki, E. Tiras, J. Wetzel, D. Winn, Y. Onel, 'Radiation Hard Active Media R&D for Hadronic Endcap Calorimeter', Journal of Instrumentation, 2016 (in preparation)
      5. H. Ogul, K. Dilsiz, E. Tiras, P. Tan, Y. Onel, J. Nachtman, 'High order QCD predictions for inclusive production of W bosons in pp collisions at sqrt(s) = 13 TeV', EPJ-C, 2015 (submitted)
      6. U. Akgun...E. Tiras, et al., 'Characterization of 1800 Hamamatsu R7600 PMTs for CMS HF Calorimeter Upgrade', Journal of Instrumentation, 2014.
      7. B. Bilki...E. Tiras, et al., 'Tests of CMS Forward Hadron Calorimeter Upgrade Readout Box Prototype', Journal of Instrumentation, Vol. 7, P10015, 2012 (CMS-HCAL Collaboration)

    • Journal Articles with CMS Collaboration as a Main Author
      1. CMS Collaboration, 'Search for heavy Majorana neutrinos in e ±e ± and e± μ± + jets events in proton-proton collisions at sqrt (s)= 8 TeV', JHEP, 2016 (submitted)
      2. CMS Collaboration, 'Search for heavy Majorana neutrinos in μ± μ± + jets events in proton-proton collisions at sqrt (s)= 8 TeV', Physics Letters B, 2015.

    • Proceedings and Reports
      1. E. Tiras, 'Radiation Hard & High Light Yield Scintillator Search for CMS Phase II Upgrade', DPF 2015-182, arXiv: 1510.08672, 2015.
      2. CMS Collaboration, 'Search for heavy Majorana neutrinos in e ±e ± and e± μ± + jets events in proton-proton collisions at sqrt(s) = 8 TeV', CMS PAS EXO-14-014, 2015.
      3. J. Almond, J. Ellison, F. Giordano, S. Seo, E. Tiras, J. Wetzel, U.K. Yang, G.B. Yu, S.B. Oh, and H.E. Lee, 'Search for Heavy Majorana Neutrinos in Same-Sign Dielectron Events in pp Collisions at sqrt(s) = 8 TeV, CMS AN-14-204, 2015.
      4. J. Almond, J. Ellison, F. Giordano, S. Seo, E. Tiras, J. Wetzel, U.K. Yang, and G.B. Yu, 'Search for Heavy Majorana Neutrinos in Same-Sign Dilepton Events in pp Collisions at sqrt(s)= 8 TeV', CMS AN-13-098, 2014.
      5. CMS HCAL Collaboration, 'Tests of CMS Hadron Forward Calorimeter Upgrade Readout Box Prototype', CMS NOTE-2012/001, 2012

  • Presentations

    • Peer Reviewed Conference Abstracts
      1. Tiras E., 'Search for heavy Majorana neutrinos in same-sign dilepton + jets events in pp collisions at sqrt(s) = 8 TeV', Meeting of Divisions & Particles of the American Physical Society, Aug. 4-8, 2015, Ann Arbor, MI, USA
      2. Tiras E., 'Radiation Hard & High Light Yield Scintillator Search for CMS Phase II Upgrade', Meeting of Divisions & Particles of the American Physical Society, Aug. 4-8, 2015, Ann Arbor, MI, USA
      3. Tiras E., 'Detector R&D for CMS Phase II Upgrade', 127th Iowa Academy of Science Annual Meeting, April 17-18 2015, University of Iowa, Iowa City, IA, USA.
      4. Tiras E., 'Search for heavy Majorana neutrinos in same-sign dilepton final states in pp collisions at sqrt(s)= 8 TeV with CMS detector', APS April Meeting, April 11-14 2015, Baltimore, MD, USA.
      5. Tiras E., 'Radiation Hard Active Media R&D for CMS Hadron Endcap Calorimetry', APS April Meeting, April 11-14 2015, Baltimore, MD, USA
      6. Tiras E., 'Radiation Hard Scintillation Material Development for CMS HE Calorimeter Upgrade', The 17th Annual James F. Jakobsen Graduate Conference, March 28th 2015, University of Iowa, Iowa City, IA, USA.
      7. Tiras E. et al., 'Fermilab T1041: CMS Forward Calorimetry R&D', 47th Fermilab Annual Users Meeting, June 11-12, 2014, Fermilab, IL, USA.
      8. Tiras E., 'Secondary Emission Ionization Calorimetry', American Physical Society (APS) 2014 Annual April Meeting, April 5-8, 2014, Savannah, Georgia, USA.
      9. Dilsiz K., Ogul H., Tiras. E., 'Novel Cherenkov Detector for Particle Identification', American Physical Society (APS) 2014 Annual April Meeting, April 5-8, 2014, Savannah, Georgia, USA.
      10. Tiras E., 'Same Sign Dielectron Search for Heavy Majorana Mass Neutrinos with the CMS Detector', The 16th Annual James F. Jakobsen Graduate Conference, March 29, 2014, Iowa City, IA, USA
      11. Dilsiz K., Tiras E., 'Development of a Novel Cerenkov Detector for Particle Identification', The 16th Annual James F. Jakobsen Graduate Conference, March 29, 2014, Iowa City, IA, USA
      12. Ogul H., Tiras E., 'R&D for Electromagnetic Calorimetry: Secondary Emission Ionization Calorimeter', The 16th Annual James F. Jakobsen Graduate Conference, March 29, 2014, Iowa City, IA, USA.
      13. Tiras E., 'The Complete Test Results of 1800 Multi-Anode Photomultiplier Tubes for CMS-HF Calorimeter Upgrade', American Physical Society (APS) Prairie Section - 2013 Annual Fall Meeting, November 7-9, 2013, University of Missouri, Columbia, MO, USA.
      14. Tiras E., Clarida W., Wetzel J., 'Same Sign Dimuon Analysis for Heavy Majorana Mass Neutrinos at the CMS Experiment at CERN', The 15th Annual James F. Jakobsen Graduate Conference, April 6, 2013, Iowa City, IA, USA.
      15. Tiras E., Corso J., Southwick D., Funk G., Jia Z., Akgun U., Onel Y., 'R&D Studies for HF Calorimeter: Test Results of the Quad-Anode PMTs and Readout Box Prototype', The 11th Annual College of Engineering Research Open House, April 4, 2013, Iowa City, IA, USA.
      16. Tiras E., Onel Y., 'HF Upgrade Studies: Characterization of Photo-Multiplier Tubes', The 14th Annual James F. Jakobsen Graduate Conference, March 24, 2012, Iowa City, IA, USA.

    • Invited Talks, Workshops and Presentations
      1. Tiras E., 'Radiation Hard & High Light Yield Scintillator Search for CMS', Nuclear & Particle Physics Seminar, University of Iowa, October 26, 2015, Iowa City, IA, USA.
      2. Tiras E., 'Electron ID Study for Majorana Neutrino Search at sqrt(s)= 8 TeV with CMS detector', Nuclear & Particle Physics Seminar, University of Iowa, February 9, 2015, Iowa City, IA, USA.
      3. Tiras E., 'Fermilab T1041: CMS Forward Calorimetry R&D', 2014 New Perspectives Conference, June 9-10, Fermilab, IL, USA.
      4. Tiras E., 'R&D Studies at Fermilab Test Beam Facility: Secondary Emission Ionization Calorimetry and Novel Cherenkov Detector for Particle Identification', Nuclear & Particle Physics Seminar, University of Iowa, May 5, 2014, Iowa City, IA, USA.
      5. Tiras E., Onel Y., 'Performance Studies of HCAL Forward Section: Replacement Hamamatsu R7525 Phototubes with R7600U-200-M4 Multi-Anode Tubes', Tri-Institute Summer School on Elementary Particles (TRISEP) at TRIUMF, July 1-12, 2013, University of British Columbia, Vancouver, BC, Canada.
      6. Tiras E., Ji X., Lebanowski L., Li G., 'Mossbauer Effect with Anti-Neutrinos in the 3H-3He, Source and Target Structure', 2013 International Neutrino Summer School (INSS), August 6-16, 2013, Beijing, China.
      7. Giordano F., Almond J., Clarida W., Ellison J., Seo S. H., Tiras E., Wetzel J., Yang U., Yu G. B., 'Search for Heavy Neutrinos with Same Sign Dileptons', 2013 Annual Exotica Workshop, November 7-9 2013, Center for Theoretical Science, Princeton, NJ, USA.
      8. Durgut S., Flores C., Johnson A. A., Lesko Z., Osterman D., Tiras E., Woods N., 'Search For Z' Resonances in Dimuon Channel', CMS Data Analysis School 2014 (CMSDAS), January 7-11, 2014, Fermi National Laboratory, Batavia, IL, USA.
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