Dmitri Kharzeev

Violation of P and CP invariances in hot QCD and its experimental signatures

Abstract:

In a recent work with Rob Pisarski and Michel Tytgat, we argue that for QCD in the limit of a large number of colors, the axial U(1) symmetry of massless quarks is effectively restored at the deconfining phase transition. We find that as a consequence of this, metastable states in which parity and CP invariances are spontaneously broken can appear in the hadronic phase. I will discuss possible manifestations of this phenomenon in future experiments at Relativistic Heavy Ion Collider