Suppression of elliptic-flow-induced correlations in an observable of possible local parity violation

Abstract

We show that fluctuations in elliptic anisotropy in heavy-ion collisions can be used to significantly reduce the contribution of transverse-momentum conservation, and of all background effects independent on the orientation of the reaction plane, from an observable of the chiral magnetic effect. We argue that for a given impact parameter, the magnetic field is approximately independent of the fluctuating shape of the fireball.

7 pages, 3 figures, new comment (iv) in section 5, references added, to appear in Phys. Rev. C

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• Anomalous transport effects and possible environmental symmetry "violation" in heavy ion collisions
• Importance of isobar density distributions on the chiral magnetic effect search
• Transverse momentum-flow correlations in relativistic heavy-ion collisions
• Anisotropy of photon production: Initial eccentricity or magnetic field
• Isolating the chiral magnetic effect from backgrounds by pair invariant mass
• Separation of flow from chiral magnetic effect in U+U collisions using spectator asymmetry
• Search for the Chiral Magnetic Effect in Relativistic Heavy-Ion Collisions
• Dependence of asymmetries for charge distribution with respect to the reaction plane on initial energy in heavy ion collisions
• Electromagnetic Field Produced in High Energy Small Collision System within Charge Density Models of Nucleon
• Experimental review on the chiral magnetic effect in relativistic heavy ion collisions
• A new method to clarify contribution of chiral magnetic effect in small collision system $p^{\uparrow }+A$ involving a transversely polarized proton