Restoration of singlet axial symmetry at finite temperature
classification
✦ hep-ph
nucl-th
keywords
temperaturehighprimerestorationaccomodateaxialcharacterdata
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To accomodate recent RHIC data on eta prime multiplicity, we propose a minimal modification of the Witten-Veneziano relation at high temperature. This renders a significant drop of eta prime mass at high temperature signaling a restoration of the U(1)A, and the Goldstone character of etaprime.
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