Fermion Scattering in domain walls with a locally dependent phase

Abstract

We consider interactions of fermions with the domain wall bubbles produced during a first order phase transition. A new exact solution of the Dirac equations is obtained for a wall profile incorporating a position dependent phase factor. The reflection coefficients are obtained.

14 pages, 3 eps figures (epsfig macro neccesary). uuencoded. also avalaible at http://www-itp.unibe.ch/~torrente