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arXiv 1111.1949hep-phnucl-th
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重离子碰撞中磁场和电场的逐事件涨落

Event-by-event fluctuations of magnetic and electric fields in heavy ion collisions

Adam Bzdak, Vladimir Skokov

摘要:

我们表明,波动的质子位置在碰撞的原子核产生,在事件的基础上,非常强的磁场和电场的方向平行和垂直于反应平面。在每个事件中,E场和B场的量级为m_pi^2 \approx 10^18高斯。讨论了重离子碰撞中电偶极观测的意义,指出了测量热介质电导率的可能性。

英文摘要:

We show that fluctuating proton positions in the colliding nuclei generate, on the event-by-event basis, very strong magnetic and electric fields in the direction both parallel and perpendicular to the reaction plane. The magnitude of E and B fields in each event is of the order of m_pi^2 \approx 10^18 Gauss. Implications on the observation of electric dipole in heavy ion collisions is discussed, and the possibility of measuring the electric conductivity of the hot medium is pointed out.

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