A microscopic calculation of secondary Drell-Yan production in heavy ion collisions

A study of secondary Drell-Yan production in nuclear collisions is presented for SPS energies. In addition to the lepton pairs produced in the initial collisions of the projectile and target nucleons, we consider the potentially high dilepton yield from hard valence antiquarks in produced mesons and...

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Detalles Bibliográficos
Autores principales: Spieles, C., Gerland, L., Hammon, N., Bleicher, M., Bass, S.A., Stoecker, Horst, Greiner, W., Lourenco, C., Vogt, R.
Lenguaje:eng
Publicado: 1997
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/s100520050279
https://dx.doi.org/10.1007/s100529800843
http://cds.cern.ch/record/328926
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author Spieles, C.
Gerland, L.
Hammon, N.
Bleicher, M.
Bass, S.A.
Stoecker, Horst
Greiner, W.
Lourenco, C.
Vogt, R.
author_facet Spieles, C.
Gerland, L.
Hammon, N.
Bleicher, M.
Bass, S.A.
Stoecker, Horst
Greiner, W.
Lourenco, C.
Vogt, R.
author_sort Spieles, C.
collection CERN
description A study of secondary Drell-Yan production in nuclear collisions is presented for SPS energies. In addition to the lepton pairs produced in the initial collisions of the projectile and target nucleons, we consider the potentially high dilepton yield from hard valence antiquarks in produced mesons and antibaryons. We calculate the secondary Drell-Yan contributions taking the collision spectrum of hadrons from the microscopic model URQMD. The contributions from meson-baryon interactions, small in hadron-nucleus interactions, are found to be substantial in nucleus-nucleus collisions at low dilepton masses. Preresonance collisions of partons may further increase the yields.
id cern-328926
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1997
record_format invenio
spelling cern-3289262023-03-21T05:07:32Zdoi:10.1007/s100520050279doi:10.1007/s100529800843http://cds.cern.ch/record/328926engSpieles, C.Gerland, L.Hammon, N.Bleicher, M.Bass, S.A.Stoecker, HorstGreiner, W.Lourenco, C.Vogt, R.A microscopic calculation of secondary Drell-Yan production in heavy ion collisionsParticle Physics - PhenomenologyA study of secondary Drell-Yan production in nuclear collisions is presented for SPS energies. In addition to the lepton pairs produced in the initial collisions of the projectile and target nucleons, we consider the potentially high dilepton yield from hard valence antiquarks in produced mesons and antibaryons. We calculate the secondary Drell-Yan contributions taking the collision spectrum of hadrons from the microscopic model URQMD. The contributions from meson-baryon interactions, small in hadron-nucleus interactions, are found to be substantial in nucleus-nucleus collisions at low dilepton masses. Preresonance collisions of partons may further increase the yields.A study of secondary Drell-Yan production in nuclear collisions is presented for SPS energies. In addition to the lepton pairs produced in the initial collisions of the projectile and target nucleons, we consider the potentially high dilepton yield from hard valence antiquarks in produced mesons and antibaryons. We calculate the secondary Drell-Yan contributions taking the collision spectrum of hadrons from the microscopic model URQMD. The contributions from meson-baryon interactions, small in hadron-nucleus interactions, are found to be substantial in nucleus-nucleus collisions at low dilepton masses. Preresonance collisions of partons may further increase the yields.hep-ph/9706525LBL-40497LBNL-40497LBNL-40497oai:cds.cern.ch:3289261997-06-30
spellingShingle Particle Physics - Phenomenology
Spieles, C.
Gerland, L.
Hammon, N.
Bleicher, M.
Bass, S.A.
Stoecker, Horst
Greiner, W.
Lourenco, C.
Vogt, R.
A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
title A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
title_full A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
title_fullStr A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
title_full_unstemmed A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
title_short A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
title_sort microscopic calculation of secondary drell-yan production in heavy ion collisions
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/s100520050279
https://dx.doi.org/10.1007/s100529800843
http://cds.cern.ch/record/328926
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