Manifestations of the axial anomaly in finite temperature QCD
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✦ hep-lat
keywords
finiteanomalyaxialbehaviourcomputeconsequencescorrelatorsdiscussed
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We compute the flavor singlet meson correlators and screening masses in quenched and $N_f=2$ QCD at $N_t=8$. The consequences of our results for the realization of the $U_A(1)$ symmetry at finite T are discussed and an interpretation of our measurements in terms of the behaviour of the low lying fermionic modes is proposed.
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