İSTANBUL ÜNİVERSİTESİ, FİZİK BÖLÜMÜ SEMİNERİ Search for a W’ Gauge Boson Decaying to WZ in pp collisions at √s = 7 TeV & Detector Studies in CASTOR and Hadronic Calorimeter of the CMS Experiment Dr. Aytül ADIGÜZEL Aytul.Adiguzel@cern.ch This talk includes two part. First one presents a measurement of the WZ invariant mass spectrum and search for new exotic particles decaying to the WZ final state, with electrons and muons using an integrated luminosity of 4.8/fb of 7 TeV data collected by the CMS experiment at the LHC in 2011. No significant excess is observed in the mass distribution of the WZ candidates and lower bounds at %95 Confidence Level (C.L) are set on the mass of hypothetical particles decaying to the WZ final state in Sequential Standard Model (SSM). Assuming the SSM, W' bosons with masses below 800 GeV have been excluded at %95 C.L. Second part of this talk presents detector studies in CASTOR and Hadronic Calorimeter of the CMS Experiment. 21 KASIM 2014 CUMA Saat:15:00 Fizik Bölümü, Engin Arık Dershanesi Saat 14:45’te çay servisi olacaktır.