Yayınlanmış 1 Ocak 2012
| Sürüm v1
Dergi makalesi
Açık
Measurement of isolated photon production in pp and PbPb collisions at root s(NN)=2.76 TeV
Oluşturanlar
- 1. Yerevan Phys Inst, Yerevan 375036, Armenia
- 2. Inst Hochenergiephys OeAW, Vienna, Austria
Açıklama
Isolated photon production is measured in proton-proton and lead-lead collisions at nucleon-nucleon centre-of-mass energies of 2.76 TeV in the pseudorapidity range vertical bar eta vertical bar < 1.44 and transverse energies E-T 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 E-T-differential yields, scaled by the number of incoherent nucleon-nucleon collisions, is consistent with unity for all PbPb reaction centralities. (C) 2012 CERN. Published by Elsevier BM. All rights reserved.
Dosyalar
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