Classical gluon production amplitude for nucleus-nucleus collisions: First saturation correction in the projectile

Giovanni A. Chirilli; Yuri V. Kovchegov; Douglas E. Wertepny

doi:10.1007/JHEP03(2015)015

Classical gluon production amplitude for nucleus-nucleus collisions: First saturation correction in the projectile

Giovanni A. Chirilli, Yuri V. Kovchegov, Douglas E. Wertepny

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20 Scopus citations

Abstract

Abstract: We calculate the classical single-gluon production amplitude in nucleus-nucleus collisions including the first saturation correction in one of the nuclei (the projectile) while keeping multiple-rescattering (saturation) corrections to all orders in the other nucleus (the target). In our approximation only two nucleons interact in the projectile nucleus: the single-gluon production amplitude we calculate is order-g³ and is leading-order in the atomic number of the projectile, while resumming all order-one saturation corrections in the target nucleus. Our result is the first step towards obtaining an analytic expression for the first projectile saturation correction to the gluon production cross section in nucleus-nucleus collisions.

Original language	English
Article number	15
Journal	Journal of High Energy Physics
Volume	2015
Issue number	3
DOIs	https://doi.org/10.1007/JHEP03(2015)015
State	Published - 1 Mar 2015
Externally published	Yes

Keywords

Heavy Ion Phenomenology
NLO Computations

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1007/JHEP03(2015)015

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title = "Classical gluon production amplitude for nucleus-nucleus collisions: First saturation correction in the projectile",

abstract = "Abstract: We calculate the classical single-gluon production amplitude in nucleus-nucleus collisions including the first saturation correction in one of the nuclei (the projectile) while keeping multiple-rescattering (saturation) corrections to all orders in the other nucleus (the target). In our approximation only two nucleons interact in the projectile nucleus: the single-gluon production amplitude we calculate is order-g3 and is leading-order in the atomic number of the projectile, while resumming all order-one saturation corrections in the target nucleus. Our result is the first step towards obtaining an analytic expression for the first projectile saturation correction to the gluon production cross section in nucleus-nucleus collisions.",

keywords = "Heavy Ion Phenomenology, NLO Computations",

author = "Chirilli, {Giovanni A.} and Kovchegov, {Yuri V.} and Wertepny, {Douglas E.}",

note = "Publisher Copyright: {\textcopyright} 2015, The Author(s).",

year = "2015",

month = mar,

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doi = "10.1007/JHEP03(2015)015",

language = "English",

volume = "2015",

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T1 - Classical gluon production amplitude for nucleus-nucleus collisions

T2 - First saturation correction in the projectile

AU - Chirilli, Giovanni A.

AU - Kovchegov, Yuri V.

AU - Wertepny, Douglas E.

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Abstract: We calculate the classical single-gluon production amplitude in nucleus-nucleus collisions including the first saturation correction in one of the nuclei (the projectile) while keeping multiple-rescattering (saturation) corrections to all orders in the other nucleus (the target). In our approximation only two nucleons interact in the projectile nucleus: the single-gluon production amplitude we calculate is order-g3 and is leading-order in the atomic number of the projectile, while resumming all order-one saturation corrections in the target nucleus. Our result is the first step towards obtaining an analytic expression for the first projectile saturation correction to the gluon production cross section in nucleus-nucleus collisions.

AB - Abstract: We calculate the classical single-gluon production amplitude in nucleus-nucleus collisions including the first saturation correction in one of the nuclei (the projectile) while keeping multiple-rescattering (saturation) corrections to all orders in the other nucleus (the target). In our approximation only two nucleons interact in the projectile nucleus: the single-gluon production amplitude we calculate is order-g3 and is leading-order in the atomic number of the projectile, while resumming all order-one saturation corrections in the target nucleus. Our result is the first step towards obtaining an analytic expression for the first projectile saturation correction to the gluon production cross section in nucleus-nucleus collisions.

KW - Heavy Ion Phenomenology

KW - NLO Computations

UR - http://www.scopus.com/inward/record.url?scp=84924405832&partnerID=8YFLogxK

U2 - 10.1007/JHEP03(2015)015

DO - 10.1007/JHEP03(2015)015

M3 - Article

AN - SCOPUS:84924405832

SN - 1126-6708

VL - 2015

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 3

M1 - 15

ER -

Classical gluon production amplitude for nucleus-nucleus collisions: First saturation correction in the projectile

Abstract

Keywords

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