Corpus ID: 237941174

Renormalization of the flavor-singlet axial-vector current and its anomaly in QCD

  title={Renormalization of the flavor-singlet axial-vector current and its anomaly in QCD},
  author={Long Chen},
  • Long Chen
  • Published 25 September 2021
  • Physics
The renormalization constant ZJ of the flavor-singlet axial-vector current with a non-anticommuting γ5 in dimensional regularization is determined to order α 3 s in QCD with massless quarks. In addition, the equality between the MS renormalization constant ZF F̃ associated with the operator F F̃ R and that of αs is verified explicitly to hold true at 4-loop order. 

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