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arXiv 0906.2803hep-ph
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手征磁效应:用重离子碰撞测量逐事件P-和CP破坏

The Chiral Magnetic Effect: Measuring event-by-event P- and CP-violation with heavy ion-collisions

Harmen J. Warringa

摘要:

具有非零拓扑荷的胶子场位形诱导P-和CP-奇效应。这样的组态很可能在重离子碰撞中产生。在这篇文章中,我将讨论在非中心重离子碰撞产生的强(电磁)磁场中,拓扑电荷在磁场的方向上产生电磁流。这就是手性磁效应。它导致正电荷与负电荷沿磁场方向分离。我将指出,这种效应可以通过电荷相关研究进行实验研究,并将参考STAR合作的有趣数据。

英文摘要:

Gluon field configurations with nonzero topological charge induce P- and CP-odd effects. Such configurations are likely to be produced during heavy ion collisions. In this article, I will argue that in the intense (electromagnetic) magnetic field produced in non-central heavy ion collisions, topological charge creates an electromagnetic current in the direction of the magnetic field. This is the Chiral Magnetic Effect. It leads to separation of positive from negative charge along the direction of the magnetic field. I will point out that this effect can be investigated experimentally with a charge correlation study and will refer to interesting data from the STAR collaboration.

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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