Chern-Simons Diffusion Rate near the Electroweak Phase Transition for $m_H\approx m_W$

Jan Smit, Wai Hung Tang

The rate of $B$-violation in the standard model at finite temperature is closely related to the diffusion rate $\Gamma$ of Chern-Simons number. We compute this rate for $m_H \approx m_W…