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arXiv · hep-ph/9504382

Standard Model Higher Order Corrections to the WWγ/WWZ Vertex

Joannis Papavassiliou
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Abstract

Using the S--matrix pinch technique we obtain to one loop order gauge independent $γW^-W^+$ and $Z W^-W^+$ vertices in the context of the standard model, with all incoming momenta off--shell. We show that the vertices so constructed satisfy simple QED--like Ward identities. These gauge invariant vertices give rise to expressions for the magnetic dipole and electric quadrupole form factors of the $W$ gauge boson, which, unlike previous treatments, satisfy the crucial properties of infrared finiteness and perturbative unitarity.

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Joannis Papavassiliou. 1995-04-24. Standard Model Higher Order Corrections to the WWγ/WWZ Vertex. https://doi.org/10.1063/1.49293

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