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Prompt contributions to the dilepton yield in heavy ion collisions

  • Heavy ion physics
  • Published:
The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

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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Authors and Affiliations

  1. Institut für Theoretische Physik der Universität, Philosophenweg 19, 69120 Heidelberg, Germany, , , , , , DE

    J. Hüfner, Yu.P. Ivanov & J. Raufeisen

  2. Max-Planck Institut für Kernphysik, Postfach 103980, 69029 Heidelberg, Germany, , , , , , DE

    B.Z. Kopeliovich

Authors
  1. J. Hüfner
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  2. Yu.P. Ivanov
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  3. B.Z. Kopeliovich
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  4. J. Raufeisen
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Received: 1 December 1999 / Revised version: 18 February 2000

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Hüfner, J., Ivanov, Y., Kopeliovich, B. et al. Prompt contributions to the dilepton yield in heavy ion collisions . EPJ A 7, 391–396 (2000). https://doi.org/10.1007/s100500050407

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  • DOI: https://doi.org/10.1007/s100500050407

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