id author title date pages extension mime words sentence flesch summary cache txt m039k358m43 Ted Ritchie Kolberg Measurement of the Isolated Photon Cross Section with Conversions in pp Collisions at √s = 7 TeV 2011 .txt text/plain 132 5 51 We present a measurement of the isolated direct photon cross section using 36.1 pb−1 of pp collision data at √s = 7 TeV collected with the Compact Muon Solenoid (CMS) experiment during the 2010 physics run of the CERN Large Hadron Collider (LHC). The transverse momentum of the conversion track pair is compared with the transverse energy measured in the CMS electromagnetic calorimeter (ECAL), and is then used to subtract the background due to e.g. π0 → γγ decays. cache/m039k358m43.txt txt/m039k358m43.txt