Application ofξ-Limiting Process to Intermediate Bosons

The $\xi$-limiting process discussed in the preceding paper is used to study the electromagnetic properties of the intermediate boson $W^{\pm }$. Assuming that the limit $\xi \to 0$ exists, it is found that, by a rearrangement of the perturbation series, the radiative correction to the quadrupole moment of $W^{\pm }$ can be calculated and is proportional to $\alpha \ln \alpha$. Similar radiative corrections to the leptonic decay modes of $W^{\pm }$, $\mu$ decay, and the $\beta$ decay of a "bare" nucleon are also discussed.