Study of Wgamma events at the CMS with 7 TeV LHC data

Abstract

The measurement of the inclusive cross section for Wgamma production is presented based on 36/ pb of data acquired with the CMS detector from 7 TeV LHC collisions in 2010. Comparisons are made with the predictions of the standard model. The W bosons are identified through their leptonic decays to electrons and muons. The Wgamma cross section is sensitive to anomalous triple-gauge couplings and hence this measurement probes physics beyond the standard model.Comment: Proceedings of talk given at Rencontres de Moriond, EWK session, La Thuile, Italy, 2011, on behalf of the CMS collaboration. 5 pages, 4 figure