Electron and Photon Performance and Electron pT Spectrum Measurement with ATLAS in pp Collisions at \sqrt s = 7 TeV

Scott Snyder
2011 Proceedings of 35th International Conference of High Energy Physics — PoS(ICHEP 2010)   unpublished
We discuss the early performance of the reconstruction of electrons and photons at ATLAS with a center-of-mass energy of 7 TeV. Using a data sample of about 15 nb −1 , we present a measurement of the transverse momentum distribution of inclusive electrons, as well as an observation of prompt photons and a measurement of the purity of this sample. We also demonstrate the reconstruction of J/ψ mesons with a data sample of 78 nb −1 .
doi:10.22323/1.120.0024 fatcat:sr2uar7o2ndunad5wjegtq7kme