Prompt Contributions to the Dilepton Yield in Heavy Ion Collisions
Nuclear Theory
2009-10-31 v2 High Energy Physics - Phenomenology
Abstract
The mass spectrum is calculated for those dileptons which are produced in the early phase of a heavy ion collisions via the direct production NN -> (l^+)(l^-)X and via the Compton process GN -> (l^+)(l^-)X with prompt gluons radiated in preceding NN interactions. Both mechanisms produce a mass spectrum which decreases steeply with invariant mass of the l^+l^- pair and which is below the CERES data for Pb-Au collisions by about one order of magnitude.
Keywords
Cite
@article{arxiv.nucl-th/9911064,
title = {Prompt Contributions to the Dilepton Yield in Heavy Ion Collisions},
author = {J. Huefner and Yu. P. Ivanov and B. Z. Kopeliovich and J. Raufeisen},
journal= {arXiv preprint arXiv:nucl-th/9911064},
year = {2009}
}
Comments
10 pages, 4 figures, using epsfig, minor changes, results unchanged