DDbar Correlations probing Thermalization in High-Energy Nuclear Collisions

Details DDbar Correlations probing Thermalization in High-Energy Nuclear Collisions DDbar Correlations probing Thermalization in High-Energy Nuclear Collisions

2006-10-30

arxiv.org/abs/nucl-ex/0610043v1

Physics

Nuclear Physics

Nuclear Experiment

Proceedings of the ISMD06 conference, Paraty, Brazil, 2-9 Sep 2006, 3 pages, 3 Figures, to appear in Brazilian Journal of Phys

Scientific paper

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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