Abstract.
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.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 9 July 1997 / Revised version: 17 December 1997 / Published online: 10 March 1998
Rights and permissions
About this article
Cite this article
Spieles, C., Gerland, L., Hammon, N. et al. A microscopic calculation of secondary Drell-Yan production in heavy ion collisions. Eur. Phys. J. C 5, 349–355 (1998). https://doi.org/10.1007/s100529800843
Issue Date:
DOI: https://doi.org/10.1007/s100529800843