End-point of the Electroweak Phase Transition using the auxiliary mass method

Abstract

We study the end-point of the Electroweak phase transition using the auxiliary mass method. The end point is $m_H\sim 40$ (GeV) in the case $m_t=0$ (GeV) and strongly depends on the top quark mass. A first order phase transition disappears at $m_t\sim 160$ (GeV). The renormalization effect of the top quark is significant.

Comments: 10 pages, 5 EPS figures, typeset using REV-Tex