# EW phase transition and baryogenesis

There are three Sakharov conditions of baryogenesis:

1. CP symmetry violation.

2. Baryon number conservation violation.

3. Thermodynamical equilibrium violation.

In SM the first one is satisfied by CKM phases, the second one is satisfied by instanton-like transitions for zero temperature and sphaleron-like transitions for non-zero temperatures. As for the third one, I've thought that EW phase transition provides violation of equilibrium, but after reading Gorbunov and Rubakov book "Introduction to the Theory of the Early Universe: Hot Big Bang Theory" I've started to doubt. They write that this transition is of second type one; thus it doesn't provide sufficient thermodynamical equilibrium violation.

So can EW phase transition provide baryogenesis?

$\frac{n_B}{n_\gamma} \sim 10^{-10} \ .$