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On the strength of the U A (1) anomaly at the chiral phase transition in N f = 2 QCD

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Brandt, Bastian B. ; Francis, Anthony ; Meyer, Harvey B. ; Philipsen, Owe ; Robaina, Daniel ; Wittig, Hartmut
Date of publication of this fulltext: 24 Apr 2018 14:57


We study the thermal transition of QCD with two degenerate light flavours by lattice simulations using O(a)-improved Wilson quarks. Temperature scans are performed at a fixed value of N (t) = (aT)(-1) = 16, where a is the lattice spacing and T the temperature, at three fixed zero-temperature pion masses between 200 MeV and 540 MeV. In this range we find that the transition is consistent with a ...


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