Hadron-quark continuity induced by the axial anomaly in dense QCD

Abstract

We investigate the interplay between the chiral and diquark condensates on the basis of the Ginzburg-Landau potential with QCD symmetry. We demonstrate that the axial anomaly drives a new critical point at low temperature in the QCD phase diagram and leads to a smooth crossover between the hadronic and color superconducting phases.

Comments: 4 pages, 5 figures, to appear in the Proceedings of Quark Matter 2006 held in Shanghai