Magnetohydrodynamics and charged currents in heavy ion collisions
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Magnetohydrodynamics.pdf
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Author(s)
Gürsoy, Umut
Kharzeev, Dmitri
Rajagopal, Krishna
Date Issued
September 2014
Journal
Nuclear Physics A
Publisher
Elsevier
Citation
Gürsoy, Umut; Kharzeev, Dmitri and Rajagopal, Krishna. “Magnetohydrodynamics and Charged Currents in Heavy Ion Collisions.” Nuclear Physics A 931 (November 2014): 986–991. © 2014 Elsevier B.V.
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Author's final manuscript
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 the magnetic fields produced in non-central heavy ion collisions 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 due to the combination of Faraday and Hall effects. We find that these currents result in a charge-dependent directed flow v1 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[subscript 1][superscript ±](y1)v[subscript 1][superscript ±](y2)〉
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1016/j.nuclphysa.2014.09.039
