Polarization as a signature of local parity violation in hot QCD matter

We show that local parity violation due to chirality imbalance in relativistic nuclear collisions can be revealed by measuring the projection of polarization vector onto momentum, i.e. helicity, final state baryons. The proposed method does not require a coupling electromagnetic field, like Chiral Magnetic Effect. By using linear response theory, we that, presence chiral imbalance, spin 1/2 baryons and anti-baryons receive an additional contribution along their momentum proportional axial chemical potential. additional, parity-breaking, helicity detected studying helicity-helicity azimuthal angular correlation.