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Heavy quark energy loss through soft QCD scattering in the QGP
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Nuclear and Particle Physics, High Energy Physics.
2007 (English)In: International Journal of Modern Physics E, ISSN 0218-3013, Vol. 16, no 7-8, 2072-2078 p.Article in journal (Refereed) Published
Abstract [en]

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(perpendicular to), results in a somewhat weaker overall suppression of electrons than observed.

Place, publisher, year, edition, pages
2007. Vol. 16, no 7-8, 2072-2078 p.
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Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-16981DOI: 10.1142/S0218301307007489ISI: 000252267700048OAI: oai:DiVA.org:uu-16981DiVA: diva2:44752
Available from: 2008-06-11 Created: 2008-06-11 Last updated: 2017-12-08Bibliographically approved

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Zapp, KorinnaIngelman, GunnarRathsman, Johan

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