DD correlations as a sensitive probe for thermalization in high-energy nuclear collisions

We propose to measure azimuthal correlations of heavy-flavor hadrons to address the status of thermalization at the partonic stage of light quarks and gluons in high-energy nuclear collisions. In particular, we show that hadronic interactions at the late stage cannot significantly disturb the initial back-to-back azimuthal correlations of DDbar pairs. Thus, a decrease or the complete absence of these initial correlations does indicate frequent interactions of heavy-flavor quarks and also light partons in the partonic stage, which are essential for the early thermalization of light partons.

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Metadaten
Author:Kai Oliver Schweda, Xianglei Zhu, Marcus Bleicher, Shengli Huang, Horst Stöcker, Nu Xu, Pengfei Zhuang
URN:urn:nbn:de:hebis:30-32323
Document Type:Preprint
Language:English
Date of Publication (online):31.10.2006
Year of first Publication:2006
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Tag:heavy-flavor quarks ; high-energy nuclear collisions ; quark-gluon plasma ; thermalization
Source:http://www.arxiv.org/abs/nucl-ex/0610043 ; Proceedings of the ISMD06 conference, Paraty, Brazil, 2-9 Sep 2006, to appear in Brazilian Journal of Physics
HeBIS PPN:190704713
Institutes:Physik
Frankfurt Institute for Advanced Studies
Dewey Decimal Classification:530 Physik
PACS-Classification:25.75.-q Relativistic heavy-ion collisions (collisions induced by light ions studied to calibrate relativistic heavy-ion collisions should be classified under both 25.75.-q and sections 13 or 25 appropriate to the light ions)
Sammlungen:Universitätspublikationen
Note:
s.a. http://publikationen.ub.uni-frankfurt.de/volltexte/2006/2630/
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen ohne Print on Demand

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