18-24 June 2017
Palacio de Congresos
Europe/Madrid timezone
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Auditorio Manuel de Falla
Nonzero Temperature and Density

Degeneracy of vector-channel spatial correlators in high temperature QCD


  • Mr. Christian ROHRHOFER

Primary authors


We study spatial isovector meson correlators in Nf=2 QCD with dynamical domain-wall fermions on the 32^3x8 lattices at temperatures T=170-380MeV with various quark masses. We measure the correlators of spin-one operators including vector ("V", 1--), axial-vector ("AV",1++), tensor ("T", 1--) and axial-tensor ("AT", 1+-). At temperatures above T_c, we observe a degeneracy of the correlators in these channels, which is unexpected because some of them are not related under SU(2)_L x SU(2)_R nor U(1)_A symmetries. If one extends the space, three operators V, T and AT may be related under SU(2)_CS (chiral-spin), see Glozman and Pak, PRD,92(2015)016001, that involves a transformation between left- and right-handed quarks. Even larger manifold, SU(4), may be considered to include all the four operators.

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Nonzero Temperature and Density