Nuclear effects in prompt photon production at the Large Hadron Collider

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

doi:10.1016/S0375-9474(01)01309-4

Nuclear effects in prompt photon production at the Large Hadron Collider

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

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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(α_emα²_s), 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 p_t = 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 p_t dependence.

Original language	English (US)
Pages (from-to)	523-538
Number of pages	16
Journal	Nuclear Physics A
Volume	700
Issue number	1-2
DOIs	https://doi.org/10.1016/S0375-9474(01)01309-4
State	Published - Mar 25 2002

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/S0375-9474(01)01309-4

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@article{15380dbaed9041a18a03e33fde16bc2d,

title = "Nuclear effects in prompt photon production at the Large Hadron Collider",

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.",

author = "J. Jalilian-Marian and K. Orginos and I. Sarcevic",

note = "Funding Information: We would like to thank P. Aurenche and M. Werlen for providing us with the Fortran routines for calculating double differential distributions for photon production in hadronic collisions and for many useful discussions. J.J.-M. would like to thank S. Jeon, M. Tannenbaum and X.-N. Wang for many helpful discussions. J.J.-M. is grateful to LBNL nuclear theory group for the use of their computing resources. This work was supported in part through US Department of Energy Grants Nos. DE-FG03-93ER40792 and DE-FG02-95ER40906.",

year = "2002",

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doi = "10.1016/S0375-9474(01)01309-4",

language = "English (US)",

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T1 - Nuclear effects in prompt photon production at the Large Hadron Collider

AU - Jalilian-Marian, J.

AU - Orginos, K.

AU - Sarcevic, I.

N1 - Funding Information: We would like to thank P. Aurenche and M. Werlen for providing us with the Fortran routines for calculating double differential distributions for photon production in hadronic collisions and for many useful discussions. J.J.-M. would like to thank S. Jeon, M. Tannenbaum and X.-N. Wang for many helpful discussions. J.J.-M. is grateful to LBNL nuclear theory group for the use of their computing resources. This work was supported in part through US Department of Energy Grants Nos. DE-FG03-93ER40792 and DE-FG02-95ER40906.

PY - 2002/3/25

Y1 - 2002/3/25

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0037170727

UR - https://www.scopus.com/inward/citedby.url?scp=0037170727&partnerID=8YFLogxK

U2 - 10.1016/S0375-9474(01)01309-4

DO - 10.1016/S0375-9474(01)01309-4

M3 - Article

AN - SCOPUS:0037170727

SN - 0375-9474

VL - 700

SP - 523

EP - 538

JO - Nuclear Physics A

JF - Nuclear Physics A

IS - 1-2

ER -

Nuclear effects in prompt photon production at the Large Hadron Collider

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