The initial gluon multiplicity in heavy ion collisions

The initial gluon multiplicity per unit area per unit rapidity, dN/L^2/d\eta, in high energy nuclear collisions, is equal to f_N (g^2\mu L) (g^2\mu)^2/g^2, with \mu^2 proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, we compute f_N (g^2\mu L)=0.14\pm...

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Detalles Bibliográficos
Autores principales: Krasnitz, A, Venugopalan, R
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.86.1717
http://cds.cern.ch/record/446938
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author Krasnitz, A
Venugopalan, R
author_facet Krasnitz, A
Venugopalan, R
author_sort Krasnitz, A
collection CERN
description The initial gluon multiplicity per unit area per unit rapidity, dN/L^2/d\eta, in high energy nuclear collisions, is equal to f_N (g^2\mu L) (g^2\mu)^2/g^2, with \mu^2 proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, we compute f_N (g^2\mu L)=0.14\pm 0.01 for a wide range in g^2\mu L. Extrapolating to SU(3), we predict dN/L^2/d\eta for values of g^2\mu L in the range relevant to the Relativistic Heavy Ion Collider and the Large Hadron Collider. We compute the initial gluon transverse momentum distribution, dN/L^2/d^2 k_\perp, and show it to be well behaved at low k_\perp.
id cern-446938
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-4469382019-09-30T06:29:59Zdoi:10.1103/PhysRevLett.86.1717http://cds.cern.ch/record/446938engKrasnitz, AVenugopalan, RThe initial gluon multiplicity in heavy ion collisionsParticle Physics - PhenomenologyThe initial gluon multiplicity per unit area per unit rapidity, dN/L^2/d\eta, in high energy nuclear collisions, is equal to f_N (g^2\mu L) (g^2\mu)^2/g^2, with \mu^2 proportional to the gluon density per unit area of the colliding nuclei. For an SU(2) gauge theory, we compute f_N (g^2\mu L)=0.14\pm 0.01 for a wide range in g^2\mu L. Extrapolating to SU(3), we predict dN/L^2/d\eta for values of g^2\mu L in the range relevant to the Relativistic Heavy Ion Collider and the Large Hadron Collider. We compute the initial gluon transverse momentum distribution, dN/L^2/d^2 k_\perp, and show it to be well behaved at low k_\perp.hep-ph/0007108oai:cds.cern.ch:4469382001
spellingShingle Particle Physics - Phenomenology
Krasnitz, A
Venugopalan, R
The initial gluon multiplicity in heavy ion collisions
title The initial gluon multiplicity in heavy ion collisions
title_full The initial gluon multiplicity in heavy ion collisions
title_fullStr The initial gluon multiplicity in heavy ion collisions
title_full_unstemmed The initial gluon multiplicity in heavy ion collisions
title_short The initial gluon multiplicity in heavy ion collisions
title_sort initial gluon multiplicity in heavy ion collisions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevLett.86.1717
http://cds.cern.ch/record/446938
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AT venugopalanr theinitialgluonmultiplicityinheavyioncollisions
AT krasnitza initialgluonmultiplicityinheavyioncollisions
AT venugopalanr initialgluonmultiplicityinheavyioncollisions

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