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arXiv 2009.09727hep-phhep-exhep-thnucl-ex
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作为重离子碰撞中强电磁场证据的电荷相关流

Charge-dependent flow as evidence of strong electromagnetic fields in heavy-ion collisions

Andrea Dubla, Umut Gürsoy, Raimond Snellings

摘要:

重离子碰撞产生的极大电磁场提供了新的观测量,这些观测量有望约束夸克-胶子等离子体的各种关键输运性质,并有助于解决QCD中的一个突出难题:强CP问题。在这篇综述中,我们提出了一个简短的概述这些电磁场的理论和实验表征。在回顾了当前的状态,强调的可观测量之一-的电荷依赖流-我们讨论的各种测量和理论预测之间的差异。最后,为了帮助解决这些差异,我们提出了新的测量方法和理论思路。

英文摘要:

The extremely large electromagnetic fields generated in heavy-ion collisions provide access to novel observables that are expected to constrain various key transport properties of the quark-gluon plasma and could help solve one of the outstanding puzzles in QCD: the strong CP problem. In this review we present a brief overview of the theoretical and experimental characterization of these electromagnetic fields. After reviewing the current state, emphasising one of the observables -- the charge-dependent flow -- we discuss the various discrepancies between the measurements and theoretical predictions. Finally, to help resolve the discrepancies, we suggest new measurements and theoretical ideas.

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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