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Prompt Contributions to the Dilepton Yield in Heavy Ion Collisions

J. Huefner·Yu. P. Ivanov·B. Z. Kopeliovich·J. Raufeisen
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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.

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J. Huefner, Yu. P. Ivanov, B. Z. Kopeliovich, J. Raufeisen. 2000-02-22. Prompt Contributions to the Dilepton Yield in Heavy Ion Collisions. https://doi.org/10.1007/s100500050407

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