Abstract
The differential cross sections for the production of photons in Z → μþμ−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−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 language | English |
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Article number | 092012 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 91 |
Issue number | 9 |
DOIs | |
Publication status | Published - 29 May 2015 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 CERN, for the CMS Collaboration
Funding
Funders | Funder number |
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National Science Foundation | 1151640, 1206044, 1314131, 1306951, 1506130, 1120138, 1211067 |
Seventh Framework Programme | 246806 |
Science and Technology Facilities Council | ST/L00609X/1, ST/N000250/1, ST/J004901/1, ST/K003542/1, ST/K001256/1, ST/K003844/1, GRIDPP, ST/M005356/1, ST/I505580/1, ST/I005912/1, ST/J005665/1, ST/J50094X/1, ST/K001604/1, ST/M004775/1, ST/K001639/1, ST/L005603/1 |
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung | 153664 |