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arXiv 1105.5528hep-phnucl-th
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各向异性{ \em夸克-胶子等离子体}中$J/ψ$的胶子解离

Gluon dissociation of $J/ψ$ in anisotropic {\em Quark-Gluon-Plasma}

Mahatsab Mandal, Pradip Roy

摘要:

本文计算了相对论性核-核碰撞形成的各向异性夸克-胶子等离子体中胶子的离解截面。系统的初始快速纵向膨胀导致动量空间各向异性,从而影响系统的可观测量。我们表明,胶子解离的热加权截面进行修改,在各向异性等离子体导致的概率降低$J/ψ$抑制RHIC和LHC能量。的截面的依赖关系,以及生存概率上的传播方向的粲偶素相对于各向异性轴。还证明了生存概率对初始条件的敏感性。

英文摘要:

We calculate the gluon dissociation cross-section in an anisotropic quark gluon plasma expected to be formed due relativistic nucleus-nucleus collisions. The initial rapid longitudinal expansion of the system leads to momentum space anisotropy due which the observables are affected in such a system. We show that the thermally weighted cross-section of gluon dissociation undergoes modification in anisotropic plasma leading to a decreased probability of $J/ψ$ suppression both for RHIC and LHC energies. The dependence of the cross section as well as the survival probability on the direction of propagation of the charmonium with respect to the anisotropy axis are presented. The sensitivity of the survival probability on the initial conditions have also been demonstrated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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