Measurement of isolated photon production in pp and PbPb collisions at root s(NN)=2.76 TeV
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 |η|<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. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000048668Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Physics Letters BBand
Seiten / Artikelnummer
Verlag
ElsevierThema
CMS; Physics; Heavy-ions; PhotonsOrganisationseinheit
03381 - Pauss, Felicitas (emeritus)
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)