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arXiv · 1003.2436

Electric Charge Separation in Strong Transient Magnetic Fields

Masayuki Asakawa·Abhijit Majumder·Berndt Müller
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Abstract

We discuss various mechanisms for the creation of an asymmetric charge fluctuation with respect to the reaction plane among hadrons emitted in relativistic heavy-ion collisions. We show that such mechanisms exist in both, the hadronic gas and the partonic phases of QCD. The mechanisms considered here all require the presence of a strong magnetic field (the ``chiral magnetic effect''), but they do not involve parity or charge-parity violations. We analyze how a transient local electric current fluctuation generated by the chiral magnetic effect can dynamically evolve into an asymmetric charge distribution among the final-state hadrons in momentum space. We estimate the magnitude of the event-by-event fluctuations of the final-state charge asymmetry due to the partonic and hadronic mechanisms.

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Masayuki Asakawa, Abhijit Majumder, Berndt Müller. 2010-06-10. Electric Charge Separation in Strong Transient Magnetic Fields. https://doi.org/10.1103/physrevc.81.064912

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