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

URN to cite this document:: urn:nbn:de:bvb:355-epub-371955
DOI to cite this document:: 10.5283/epub.37195

Brandt, Bastian B. ; Francis, Anthony ; Meyer, Harvey B. ; Philipsen, Owe ; Robaina, Daniel ; Wittig, Hartmut

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Date of publication of this fulltext: 24 Apr 2018 14:57

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Abstract

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 ...