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Heavy quark energy loss through soft QCD scattering in the QGP

Zapp, Korinna LU ; Ingelman, Gunnar ; Rathsman, Johan LU and Stachel, Johanna (2007) In International Journal of Modern Physics E 16(7-8). p.2072-2078
Abstract
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.
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author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
International Journal of Modern Physics E
volume
16
issue
7-8
pages
7 pages
publisher
World Scientific Publishing
external identifiers
  • scopus:35348988276
ISSN
0218-3013
DOI
10.1142/S0218301307007489
language
English
LU publication?
no
id
c268c085-9163-4376-be35-acea7ff2e042
date added to LUP
2019-05-29 15:09:43
date last changed
2022-04-10 20:36:38
@article{c268c085-9163-4376-be35-acea7ff2e042,
  abstract     = {{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.}},
  author       = {{Zapp, Korinna and Ingelman, Gunnar and Rathsman, Johan and Stachel, Johanna}},
  issn         = {{0218-3013}},
  language     = {{eng}},
  number       = {{7-8}},
  pages        = {{2072--2078}},
  publisher    = {{World Scientific Publishing}},
  series       = {{International Journal of Modern Physics E}},
  title        = {{Heavy quark energy loss through soft QCD scattering in the QGP}},
  url          = {{http://dx.doi.org/10.1142/S0218301307007489}},
  doi          = {{10.1142/S0218301307007489}},
  volume       = {{16}},
  year         = {{2007}},
}