Magnetohydrodynamics, charged currents, and directed flow in heavy ion collisions
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PhysRevC.89.054905.pdf
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Author(s)
Gursoy, Umut
Kharzeev, Dmitri
Rajagopal, Krishna
Date Issued
May 2014
Journal
Physical Review C
Publisher
American Physical Society
Citation
Gursoy, Umut, Dmitri Kharzeev, and Krishna Rajagopal. “Magnetohydrodynamics, Charged Currents, and Directed Flow in Heavy Ion Collisions.” Phys. Rev. C 89, no. 5 (May 2014). © 2014 American Physical Society
Version
Final published version
Abstract
The hot QCD matter produced in any heavy ion collision with a nonzero impact parameter is produced within a strong magnetic field. We study the imprint that these fields leave on the azimuthal distributions and correlations of the produced charged hadrons. The magnetic field is time dependent and the medium is expanding, which leads to the induction of charged currents owing to the combination of Faraday and Hall effects. We find that these currents result in a charge-dependent directed flow v[subscript 1] that is odd in rapidity and odd under charge exchange. It can be detected by measuring correlations between the directed flow of charged hadrons at different rapidities, 〈v[± over 1](y[subscript 1])v[± over 1](y[subscript 2])〉.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.89.054905
