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Johan Rathsman. Photo.

Johan Rathsman

Senior lecturer

Johan Rathsman. Photo.

Heavy quark energy loss through soft QCD scattering in the QGP

Author

  • Korinna Zapp
  • Gunnar Ingelman
  • Johan Rathsman
  • Johanna Stachel

Summary, in English

A strong suppression of non-photonic electrons in Au+Au collisions is observed at Rhic. This is in disagreement with the expected dominance of the energy loss via gluon radiation, which predicts a much weaker suppression of heavy flavours due to the dead cone effect. However, collisional energy loss is also important, as demonstrated recently by the Soft Colour Interaction Jet Quenching model. Based on this model we show that collisional energy loss of charm quarks gives a suppression of electrons of the observed magnitude, but the contribution from beauty decays, which dominates at intermediate and large p⊥, results in a somewhat weaker overall suppression of electrons than observed.

Publishing year

2007

Language

English

Pages

2072-2078

Publication/Series

International Journal of Modern Physics E

Volume

16

Issue

7-8

Document type

Journal article

Publisher

World Scientific Publishing

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0218-3013