Anomalous chiral symmetry breaking above the QCD phase transition


Journal Article

We study the anomalous breaking of UA(1) symmetry just above the QCD phase transition for zero and two flavors of quarks, using a staggered fermion, lattice discretization. The properties of the QCD phase transition are expected to depend on the degree of UA(1) symmetry breaking in the transition region. For the physical case of two flavors, we carry out extensive simulations on a 163×4 lattice, measuring a difference in susceptibilities which is sensitive to UA(1) symmetry and which avoids many of the staggered fermion discretization difficulties. The results suggest that anomalous effects are at or below the 15% level. © 1999 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Chandrasekharan, S; Chen, D; Christ, N; Lee, W; Mawhinney, R; Vranas, P

Published Date

  • January 1, 1999

Published In

Volume / Issue

  • 82 / 12

Start / End Page

  • 2463 - 2466

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.82.2463

Citation Source

  • Scopus