Study of final-state radiation in decays of Z bosons produced in pp collisions at 7 TeV

CMS Collaboration

Research output: Contribution to journalArticle

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Abstract

The differential cross sections for the production of photons in Z → μþμγ decays are presented as a function of the transverse energy of the photon and its separation from the nearest muon. The data for these measurements are collected with the CMS detector and correspond to an integrated luminosity of 4.7 fb−1of pp collisions at √s = 7 TeV delivered by the CERN LHC. The cross sections are compared to simulations with POWHEG and PYTHIA, where PYTHIA is used to simulate parton showers and final-state photons. These simulations match the data to better than 5%.

Original languageEnglish
Article number092012
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume91
Issue number9
DOIs
StatePublished - May 29 2015

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