Symmetries of meson correlators in high-temperature QCD with physical <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>u</mml:mi><mml:mo>/</mml:mo><mml:mi>d</mml:mi><mml:mo>,</mml:mo><mml:mi>s</mml:mi><mml:mo>,</mml:mo><mml:mi>c</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math> domain-wall quarks

Abstract

The correlation functions of meson interpolators in ${N}_{f}=2+1+1$ lattice QCD with optimal domain-wall quarks at the physical point are studied for six temperatures in the range $T\ensuremath{\sim}190--770\text{ }\text{ }\mathrm{MeV}$. The meson interpolators include a complete set of Dirac bilinears, and each for six combinations of quark flavors. In this paper, we focus on the meson correlators of $u$ and $d$ quarks, and we discuss their implications for the effective restoration of $U(1{)}_{A}$ and $SU(2{)}_{L}\ifmmode\times\else\texttimes\fi{}SU(2{)}_{R}$ chiral symmetries, as well as the emergence of approximate $SU(2{)}_{\mathrm{CS}}$ chiral spin symmetry.

Topics & Concepts