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arXiv · nucl-th/0610088

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

G. L. Ma·S. Zhang·Y. G. Ma·X. Z. Cai·J. H. Chen·Z. J. He·H. Z. Huang·J. L. Long·W. Q. Shen·X. H. Shi·C. Zhong·J. X. Zuo
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Abstract

The time evolution of Mach-like structure (the splitting of the away side peak in di-hadron $Δϕ$ 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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G. L. Ma, S. Zhang, Y. G. Ma, X. Z. Cai, J. H. Chen, Z. J. He, H. Z. Huang, J. L. Long, W. Q. Shen, X. H. Shi, C. Zhong, J. X. Zuo. 2006-10-24. Time evolution of Mach-like structure in a partonic transport model. https://arxiv.org/abs/nucl-th/0610088

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