Study of final-state radiation in decays of Z bosons produced in pp collisions at 7 TeV
Author(s)
Apyan, Aram; Barbieri, Richard Alexander; Bierwagen, Katharina; Busza, Wit; Cali, Ivan Amos; Di Matteo, Leonardo; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Gulhan, Doga Can; Klute, Markus; Lai, Yue Shi; Lee, Yen-Jie; Levin, Andrew Michael; Paus, Christoph M. E.; Ralph, Duncan Kelley; Stephans, George S. F.; Velicanu, Dragos Alexandru; Veverka, Jan; Wyslouch, Boleslaw; Yang, Mingming; Zanetti, Marco; Luckey Jr, P David; Roland, Christof E; Roland, Gunther M; Sumorok, Konstanty C; Wyslouch, Victoria; ... Show more Show less![Thumbnail](/bitstream/handle/1721.1/98514/Khachatryan-2015-Study%20of%20final-state.pdf.jpg?sequence=4&isAllowed=y)
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The differential cross sections for the production of photons in Z → μ[superscript +]μ[superscript −]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[superscript −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%.
Date issued
2015-05Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of ScienceJournal
Physical Review D
Publisher
American Physical Society
Citation
Khachatryan, V., A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, J. Ero, et al. “Study of Final-State Radiation in Decays of Z Bosons Produced in P P Collisions at 7 TeV.” Physical Review D 91, no. 9 (May 29, 2015). © 2015 CERN, for the CMS Collaboration
Version: Final published version
ISSN
1550-7998
1550-2368