Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2009-10-24
PoS LAT2009:080,2009
Physics
High Energy Physics
High Energy Physics - Lattice
7 pages, 8 figures; Presented at 27th International Symposium on Lattice Field Theory, Beijing, China, 25 Jul -31 Jul 2009; re
Scientific paper
A possible experimental observation of the chiral magnetic effect in heavy ion collisions at RHIC was recently reported by the STAR Collaboration. We study signatures of this effect in SU(2) lattice gluodynamics with the chirally invariant Dirac operator. We find that at zero temperature the local fluctuations of an electric current of quarks and chirality fluctuations increase with external Abelian magnetic field. The external magnetic field leads to spatial separation of the quark's electric charges. The separation increases with the strength of the magnetic field. As temperature gets higher the dependence of these quantities on the strength of the magnetic field becomes weaker. In the deconfinement phase the local fluctuations of the chiral density and of the spatial components of the quarks electric current are large and are almost independent on the external magnetic field. The local fluctuations of the electric charge density decrease with the strength of the magnetic field in this phase.
Buividovich P. V.
Chernodub Maxim N.
Luschevskaya E. V.
Polikarpov Mikhail I.
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