Measuring and interpreting charge dependent anisotropic flow

Abstract

The Chiral Magnetic Wave (CMW) [1] predicts a dependence of the positive and negative particle elliptic flow on the event charge asymmetry. Such a dependence has been observed by the STAR Collaboration [2]. However, it is rather difficult to interpret the results of this measurement, as well as to perform cross-experiment comparisons, due to the dependence of the observable on experimental inefficiencies and the kinematic acceptance used to determine the net asymmetry. We propose another observable that is free from these deficiencies. It also provides possibilities for differential measurements clarifying the interpretation of the results. We use this new observable to study the effect of the local charge conservation that can mimic the effect of the CMW in charge dependent flow measurements.

4 pages, Quark Matter 2014 proceedings

References in corpus (4)

• Charge conservation in RHIC and contributiuons to local parity violation observables
• Elliptic flow of identified hadrons in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Charge-dependent anisotropic flow studies and the search for the Chiral Magnetic Wave in ALICE
• Viewing the Chemical Evolution of the Quark-Gluon Plasma with Charge Balance Functions

Cited by in corpus (2)

• Collective Modes of Chiral Kinetic Theory in Magnetic Field
• Charge-dependent anisotropic flow studies and the search for the Chiral Magnetic Wave in ALICE