Heavy quark energy loss through soft QCD scattering in the QGP
(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.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/c268c085-9163-4376-be35-acea7ff2e042
- author
- Zapp, Korinna LU ; Ingelman, Gunnar ; Rathsman, Johan LU and Stachel, Johanna
- publishing date
- 2007
- 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}}, }