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This content will become publicly available on May 29, 2015

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

The differential cross sections for the production of photons in Z→μ+μ-γ 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-1 of 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%.
Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI) (Armenia); et al.
Publication Date:
OSTI Identifier:
1193900
Report Number(s):
FERMILAB-PUB-15-060-CMS; CERN-PH-EP-2015-031; CMS-EWK-11-016
Journal ID: ISSN 1550-7998; arXiv eprint number arXiv:1502.07940; TRN: US1600877
Grant/Contract Number:
AC02-07CH11359
Type:
Published Article
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 9; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Contributing Orgs:
CMS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS