Nuclear effects in prompt photon production at the Large Hadron Collider

J. Jalilian-Marian, K. Orginos, I. Sarcevic

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

We present a detailed study of prompt photon production cross section in heavy-ion collisions in the central rapidity region at energy of √s = 5.5 TeV, appropriate to LHC experiment. We include the next-to-leading order radiative corrections, O(αemα2s), nuclear shadowing and the parton energy-loss effects. We find that the nuclear effects can reduce the invariant cross section for prompt photon production by an order of magnitude at pt = 3 GeV. We discuss theoretical uncertainties due to parton energy loss and nuclear shadowing parameters. We show that the K-factor, which signifies the importance of next-to-leading order corrections, is large and has a strong pt dependence.

Original languageEnglish (US)
Pages (from-to)523-538
Number of pages16
JournalNuclear Physics A
Volume700
Issue number1-2
DOIs
StatePublished - Mar 25 2002

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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