Standard model higher order corrections to the WW γ/WWZ vertex
- Conference date: 1−3 Feb 1995
- Location: Los Angeles, California (USA)
Using the S‐matrix pinch technique we obtain to one loop order gauge independent γ W − 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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