arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0802.2254hep-ph
收藏

快粒子在微扰夸克-胶子等离子体中诱导的音速马赫锥

Sonic Mach Cones Induced by Fast Partons in a Perturbative Quark-Gluon Plasma

R. B. Neufeld, B. Müller, J. Ruppert

摘要:

通过把快部分子看作扰动介质的外部色场的源,导出了快部分子穿过弱耦合夸克-胶子等离子体时所沉积的能量和动量的时空分布.然后,我们使用我们的结果作为源项的线性流体动力学方程的介质。结果表明,当部分子以超音速运动时,该解包含一个音速马赫锥和一个耗散尾迹。

英文摘要:

We derive the space-time distribution of energy and momentum deposited by a fast parton traversing a weakly coupled quark-gluon plasma by treating the fast part on as the source of an external color field perturbing the medium. We then use our result as a source term for the linearized hydrodynamical equations of the medium. We show that the solution contains a sonic Mach cone and a dissipative wake if the parton moves at a supersonic speed.

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。

↑