Polarization effects in electroweak vector boson productions

Abstract

The electroweak production processes of vector bosons, $e^{+}{e}^{-}\to Z\gamma$, $\gamma e\to Ze$, and $\gamma e\to W\nu$ are considered simultaneousely and in the Standard model the covariant polarization density matrices of vector bosons for these processes are obtained explicitly from one of the processes, $\gamma e\to Ze$. The effect of the photon polarization as well as the vector meson polarization is considered and some special cases are discussed.

Comments: 17 pages, figures are included , RevTex