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

  • We propose to measure 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, shown on the example of azimuthal correlations of D-Dbar pairs. We show that hadronic interactions at the late stage can not disturb these correlations significantly. Thus, a decrease or the complete absence of these initial correlations indicates frequent interactions of heavy-flavor quarks in the partonic stage. Therefore, early thermalization of light quarks is likely to be reached. PACS numbers: 25.75.-q

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Author:Xianglei Zhu, Marcus BleicherORCiDGND, Shengli Huang, Kai SchwedaGND, Horst StöckerORCiDGND, Hermine K. Wöhri, Nu Xu, Pengfei ZhuangORCiD
Document Type:Preprint
Date of Publication (online):2006/05/09
Year of first Publication:2006
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/05/09
Tag:D-Dbar; nuclear collisions
Institutes:Physik / Physik
Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS)
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht