Charge separation with fluctuating domains in relativistic heavy-ion collisions

Abstract

Charge separation induced by the chiral magnetic effect suggested that some $\mathcal{P}$- or $\mathcal{C}\mathcal{P}$-odd metastable domains could be produced in a QCD vacuum in the early stage of relativistic heavy-ion collisions. Based on a multi-phase transport model, our results suggest that a domain-based scenario with final state interactions can describe the solenoidal tracker at RHIC detector (STAR) measurements of both same- and opposite-charge azimuthal angle correlations, $<\cos ({\varphi }_{\alpha }+{\varphi }_{\beta })>$, in Au+Au collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}=200$ GeV. The occupancy factor of the total volume of domains over the fireball volume is small, which indicates that the size and number of metastable domains should be relatively small in the early stage of a quark-gluon plasma.

arXiv comment4 pages, 4 figures, 1 table, final published version

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• Experimental searches for the chiral magnetic effect in heavy-ion collisions
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• Spin Hydrodynamic Generation in the Charged Subatomic Swirl
• Predictions for isobaric collisions at $\sqrt{s_{{}_{\mathrm{NN}}}}$ = 200 GeV from a multiphase transport model
• Search for the Chiral Magnetic Effect in Relativistic Heavy-Ion Collisions
• Collective flows of $\alpha$-clustering ${}^{12}\mathrm{C}$ + ${}^{197}\mathrm{Au}$ by using different flow analysis methods
• Collision system size scan of collective flows in relativistic heavy-ion collisions
• Sensitivity analysis of the chiral magnetic effect observables using a multiphase transport model
• Possible observables for the chiral electric separation effect in Cu + Au collisions
• Magnetic Field in the Charged Subatomic Swirl