Gluon saturation in a saturated environment

Journal Article · Fri Jul 15 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3601417· OSTI ID:21608231

Kopeliovich, B Z; Potashnikova, I K; Schmidt, Ivan ^[1]; Casilla 110-V, Valparaiso ^[2]

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1. Departamento de Fisica Universidad Tecnica Federico Santa Maria (Chile) and Instituto de Estudios Avanzados en Ciencias e Ingenieria (Chile) and Centro Cientifico-Tecnologico de Valparaiso
2. Chile

A bootstrap equation for self-quenched gluon shadowing leads to a reduced magnitude of broadening for partons propagating through a nucleus. Saturation of small-x gluons in a nucleus, which has the form of transverse momentum broadening of projectile gluons in pA collisions in the nuclear rest frame, leads to a modification of the parton distribution functions in the beam compared with pp collisions. In nucleus-nucleus collisions all participating nucleons acquire enhanced gluon density at small x, which boosts further the saturation scale. Solution of the reciprocity equations for central collisions of two heavy nuclei demonstrate a significant, up to several times, enhancement of Q{sub sA}{sup 2}, in AA compared with pA collisions.

• OSTI ID: 21608231
• Journal Information: AIP Conference Proceedings, Vol. 1350, Issue 1; Conference: DIFFRACTION 2010: International workshop on diffraction in high energy physics, Otranto (Italy), 10-15 Sep 2010; Other Information: DOI: 10.1063/1.3601417; (c) 2011 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOOTSTRAP MODEL
DISTRIBUTION FUNCTIONS
GLUONS
HEAVY ION REACTIONS
HEAVY NUCLEI
MATHEMATICAL SOLUTIONS
NUCLEONS
PARTICLE KINEMATICS
PROTON REACTIONS
PROTON-PROTON INTERACTIONS
QUARKS
TRANSVERSE MOMENTUM
BARYON REACTIONS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CHARGED-PARTICLE REACTIONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PROTON-NUCLEON INTERACTIONS