Measurement of isolated photon production in pp and PbPb collisions at √ s NN = 2.76 TeV with CMS
Name
1-s2.0-S0375947412003764-main.pdf
Description
Published version
Size
278.39 KB
Format
Adobe PDF
Checksum (MD5)
55608312d1b8413026d71bf1b91498b4
Author(s)
Lee, Yen-Jie
The CMS Collaboration
Date Issued
2013
Journal
Nuclear Physics A
Publisher
Elsevier BV
Version
Final published version
Abstract
Isolated photon production is measured in pp and PbPb collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range |ζ| < 1.44 and transverse energies ET between 20 and 80 GeV with the CMS detector at the LHC. The measured ET spectra are found to be in good agreement with next-to-leading-order perturbative QCD predictions. The ratio of PbPb to pp isolated photon ET-differential yields, scaled by the number of incoherent nucleon-nucleon collisions, is consistent with unity for all PbPb reaction centralities. © 2013 CERN.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution-NonCommercial-NoDerivs License
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/J.NUCLPHYSA.2012.12.053
