P-Odd Pion Azimuthal Charge Correlations in Heavy Ion Collisions
  We argue that the large instanton induced Pauli form factor in polarized proton-proton scattering may cause, through topological fluctuations, substantial charge-dependent azimuthal correlations for pi^+/pi^- production in peripheral heavy ion collisions both at RHIC and LHC, thanks to the large induced magnetic field. Our results compare favorably to the measured pion azimuthal correlations by the STAR and ALICE collaborations. 
Yachao Qian and Ismail Zahed
hep-ph hep-ex nucl-ex nucl-th