Quantum Corrections to the Electroweak Sphaleron Transition

Abstract

We have performed a new exact evaluation of the fluctuation determinant $\kappa$ of the electroweak sphaleron with ${\Theta }_W=0$. The results differ significantly from a previous calculation of this quantity by Carson et. al. . We find that $\kappa$ is of order 1 in units $(gv{)}^6$ while the previous results indicated a strong suppression of the sphaleron transition by this factor.

Comments: 6pages, 2 figures (appended as uuencoded tar-compressed postscript files),DO-TH-93/15