Relations Among Correlation Functions in the High Temperature Phase of QCD with Broken SU(3)

Details Relations Among Correlation Functions in the High Temperature Phase of QCD with Broken SU(3) Relations Among Correlation Functions in the High Temperature Phase of QCD with Broken SU(3)

1997-01-29

arxiv.org/abs/hep-ph/9701408v1

Phys.Lett. B399 (1997) 263-266

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages

Scientific paper

10.1016/S0370-2693(97)00279-7

Group-theoretic arguments are used to determine the dependence of two-point correlators of quark bilinears on the current quark masses. The leading difference between $\pi$ and $\delta$ correlators is found to be of order $m_s$ times a U(1)$_{\scriptscriptstyle A}$-violating correlator. These general arguments are consistent with Schaefer's observation that if U(1)$_{\scriptscriptstyle A}$ violation persists to high enough temperatures then the strange $\eta$ can be lighter than the non-strange one.

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