Ward–Green–Takahashi identities and the axial-vector vertex

@inproceedings{Qin2014WardGreenTakahashiIA,
  title={Ward–Green–Takahashi identities and the axial-vector vertex},
  author={Si-xue Qin and Craig D. Roberts and Sebastian M. Schmidt},
  year={2014}
}
Abstract The colour-singlet axial-vector vertex plays a pivotal role in understanding dynamical chiral symmetry breaking and numerous hadronic weak interactions, yet scant model-independent information is available. We therefore use longitudinal and transverse Ward–Green–Takahashi (WGT) identities, together with kinematic constraints, in order to ameliorate this situation and expose novel features of the axial vertex: amongst them, Ward-like identities for elements in the transverse piece of… CONTINUE READING

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