Testing the Chiral Magnetic Effect with Central U+U collisions

Abstract

A quark interaction with topologically nontrivial gluonic fields, instantons and sphalerons, violates ¶~ and \CP~ symmetry. In the strong magnetic field of a noncentral nuclear collision such interactions lead to the charge separation along the magnetic field, the so-called chiral magnetic effect (CME). Recent results from the STAR collaboration on charge dependent correlations are consistent with theoretical expectations for CME but may have contributions from other effects, which prevents definitive interpretation of the data. Here I propose to use central body-body $U+U$ collisions to disentangle correlations due to CME from possible background correlations due to elliptic flow. Further more quantitative studies can be performed with collision of isobaric beams.

Latex, 5 pages, 4 figures. 2 more references added. No change to figures or results. As published in Phys. Rev. Lett. 105, 172301 (2010)

References in corpus (2)

• The Chiral Magnetic Effect
• Charge separation induced by P-odd bubbles in QCD matter

Cited by in corpus (6)

• Chiral Magnetic Wave
• Testing the chiral magnetic and chiral vortical effects in heavy ion collisions
• Charge conservation in RHIC and contributiuons to local parity violation observables
• The Sphaleron Rate in SU(N) Gauge Theory
• Azimuthal correlations from transverse momentum conservation and possible local parity violation
• P and CP Violation and New Thermalization Scenario in Heavy Ion Collisions