TY  - INPR
A1  - Spieles, Christian
A1  - Gerland, Lars
A1  - Hammon, Nils
A1  - Bleicher, Marcus
A1  - Bass, Steffen A.
A1  - Stöcker, Horst
A1  - Greiner, Walter
A1  - Lourenço, Carlos
A1  - Vogt, Ramona
T1  - A microscopic calculation of secondary Drell-Yan production in heavy ion collisions
N2  - 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 con- tributions from meson-baryon interactions, small in hadron-nucleus interac- tions, are found to be substantial in nucleus-nucleus collisions at low dilepton masses. Preresonance collisions of partons may further increase the yields.
KW  - Kollisionen schwerer Ionen
KW  - Drell-Yan-Prozess
KW  - Drell-Yan production
KW  - heavy ion collisions
Y1  - 2006
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/3040
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30-23611
ER  -