## Symmetric point flavour singlet axial vector current renormalization at two loops

21 Jul 2020  ·  Gracey J. A. ·

We calculate the two loop correction to the quark 2-point function with the non-zero momentum insertion of the flavour singlet axial vector current at the fully symmetric subtraction point for massless quarks in the modified minimal subtraction (MSbar) scheme. The Larin method is used to handle $\gamma^5$ within dimensional regularization at this loop order ensuring that the effect of the chiral anomaly is properly included within the construction...

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High Energy Physics - Phenomenology High Energy Physics - Lattice