Fabjan, C., Frühwirth, R., Jeitler, M., & CMS Collaboration. (2012). Measurement of isolated photon production in pp and PbPb collisions at √sNN = 2.76 TeV. Physics Letters B, 710(2), 256–277. https://doi.org/10.1016/j.physletb.2012.02.077
E141-03 - Forschungsbereich Nuclear and Particle Physics
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Journal:
Physics Letters B
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ISSN:
0370-2693
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Date (published):
4-Apr-2012
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Number of Pages:
22
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Publisher:
ELSEVIER
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Peer reviewed:
Yes
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Keywords:
Nuclear and High Energy Physics; Heavy-ions
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Abstract:
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 |n| < 1.44 and transverse energies E_T between 20 and 80 GeV with the CMS detector at the LHC. The measured E_T 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.
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Research Areas:
Quantum Modelling and Simulation: 30% außerhalb der gesamtuniversitären Forschungsschwerpunkte: 70%
