New Critical Point Induced by the Axial Anomaly in Dense QCD
High Energy Physics - Phenomenology
2007-05-23 v2 Other Condensed Matter
Nuclear Theory
Abstract
We study the interplay between chiral and diquark condensates within the framework of the Ginzburg-Landau free energy, and classify possible phase structures of two and three-flavor massless QCD. The QCD axial anomaly acts as an external field applied to the chiral condensate in a color superconductor and leads to a crossover between the broken chiral symmetry and the color superconducting phase, and, in particular, to a new critical point in the QCD phase diagram.
Cite
@article{arxiv.hep-ph/0605018,
title = {New Critical Point Induced by the Axial Anomaly in Dense QCD},
author = {Tetsuo Hatsuda and Motoi Tachibana and Naoki Yamamoto and Gordon Baym},
journal= {arXiv preprint arXiv:hep-ph/0605018},
year = {2007}
}
Comments
4 pages, 4 figures included, version to appear in Phys. Rev. Lett