Time evolution of Mach-like structure in a partonic transport model

Details Time evolution of Mach-like structure in a partonic transport model Time evolution of Mach-like structure in a partonic transport model

2006-10-24

arxiv.org/abs/nucl-th/0610088v1

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures

Scientific paper

The time evolution of Mach-like structure (the splitting of the away side peak in di-hadron $\Delta\phi$ correlation) is presented in the framework of a dynamical partonic transport model. With the increasing of the lifetime of partonic matter, Mach-like structure can be produced and developed by strong parton cascade process. Not only the splitting parameter but also the number of associated hadrons ($N_{h}^{assoc}$) increases with the lifetime of partonic matter and partonic interaction cross section. Both the explosion of $N_{h}^{assoc}$ following the formation of Mach-like structure and the corresponding results of three-particle correlation support that a partonic Mach-like shock wave can be formed by strong parton cascade mechanism. Therefore, the studies about Mach-like structure may give us some critical information, such as the lifetime of partonic matter and hadronization time.

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