Browsing Fizik by Author "Gülmez, Erhan."

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  • A study of anomalous events in CMS-HF PMTs 
    Halu, Arda. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    The Forward Hadronic (HF) calorimeter of the CMS detector will measure the hadronic jets as well as determine the missing transverse energy generally attributed to new physics phenomena. HF is a quartz ber calorimeter in ...
  • A study on susy search strategies in the CMS, HPD noise spectrum and electron reconstruction efficiency 
    Deliömeroğlu, Mehmet. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    The hybrid photo diodes in the HCAL will play an important role in detection of the jets and missing energy. It is very important to understand and monitor their charge spectrum. The charge spectrum of the HPD detectors ...
  • A study on the stability of the led gain monitoring system for the CMS-HF PMTs during 2009 
    Özbek, Melih. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2010., 2010.)
    The Hadronic Forward (HF) calorimeter improves the jet detection and the missing transverse energy resolution of the Compact Muon Solenoid (CMS). In HF, the Photo Multiplier Tubes (PMTs) convert optical signals (i.e., ...
  • Calibration of CMS luminometers using van der Meer and emittance scans 
    Çekmecelioğlu, Yusuf Can. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2021., 2021.)
    The calibration for the CMS luminosity measurement for the 2018 LHC run is described. The principal calibration is derived from the analysis of the van der Meer scan program in CMS taken in LHC fill 6868 on June 30th–July ...
  • Comparison of the multi-anode PMTs with the old HF PMTs by studying the collision data 
    Öz, Yavuz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2013., 2013.)
    The Hadron Forward (HF) calorimeter of the CMS detector improves jet detection and missing transverse energy resolution in the high pseudorapidity range. HF employs photomultiplier tubes (PMT) that measure the Cerenkov ...
  • DAQ link and IBERT studies of CMS HGCAL back end electronics 
    Tatlı, Taylan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2022., 2022)
    The HL-LHC experiment will face two main challenges: high radiation due to increased high integrated luminosity and large amount of data resulting from high instantaneous luminosity. To overcome these two challenges, CMS ...
  • Energy resolution and response analysis of the wedge 2-13 of the hadron forward calorimeter with electrons 
    Deliömeroğlu, Mehmet. (Thesis (M.S)-Bogazici University.Institute for Graduate Studies in Science and Engineering, 2005., 2005.)
    CMS is one of the major detectors in the Large Hadron Collider (LHC) and it isbuilt to check postulations of the standard model, especially, the Higgs mechanism. TheHF calorimeter is part of the CMS detector to detect ...
  • Measurement of the differential dijet production cross section in proton-proton collisions at √s= 7 TeV 
    Işıldak, Bora. (Thesis (Ph.D.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2011., 2011.)
    A measurement of the double-di erential inclusive dijet production cross section in proton-proton collisions at √s = 7 TeV is presented as a function of the dijet invariant mass and jet rapidity. The data correspond to ...
  • Phase 1 upgrade of the hadronic forward calorimeter - testing the frontend daq electronics cards 
    Köseyan, Ohannes Kamer. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2016., 2016.)
    The original CMS HF Photomultiplier tubes (PMT) that were used by the CMS experiment during Run I were Hamamatsu R7525 single anode PMTs. These PMTs had a known issue of producing anomalous events due to the Cherenkov ...
  • Radiation damage monitoring in Hadron Forward calorimetry 
    Zöğ, İrem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    Placed at high absolute pseudorapidity, Hadron Forward (HF) calorimeters are exposed to high energy particles more than other parts of the CMS HCAL detector in CERN. Radiation resulting from high energy particles lead to ...
  • Tests of the front-end electronics for the Phase-I Upgrade of the CMS-HB calorimeter 
    Dönertaş, İzzeddin Suat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2019., 2019.)
    The Phase-I Upgrade of the CMS HB calorimeter is going to be implemented during the long shutdown 2 (LS2) for it to be ready for the second decade of LHC operations which aims to increase luminosity by an order of magnitude ...

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