Chiral Charge Flux and Electroweak Baryogenesis

Abstract

By treating CP-violating interaction of the electroweak bubble wall as a perturbative term, chiral charge flux through the bubble wall is estimated. It is found that the absolute value of the flux $F_Q$ has a sharp peak at $m_0\sim a\sim T$ with $F_Q/(u{T}^3)\sim 10^{-3}(Q_L-Q_R)\Delta \theta$. Here $m_0$ is the fermion mass, $1/a$ is the wall thickness, $T$ is the temperature at which the bubbles are growing, $u$ is the wall velocity, $Q_{L(R)}$ is the chiral charge of the relevant left(right)-handed fermion and $\Delta \theta$ is the measure of CP violation.

10 pages, 4 figures ( not included, hard copies are available upon request ), plain TeX with phyzzx.