The High-Temperature Two-Loop Effective Potential of the Electroweak Theory in a General 't Hooft Background Gauge

Abstract

We calculate the high-temperature two-loop effective potential using a general 't~Hooft background gauge. The dependence on the gauge-fixing parameter $\xi$ is investigated. The effective coupling constant at the critical temperature $g_3(T_c{)}^2$ is decreased considerably compared to the one-loop result, independent of $\xi$.

14 pages, LaTeX, 4 uuencoded figures

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• Robust approach to thermal resummation: Standard Model meets a singlet
• Thermal phase transition with full 2-loop effective potential
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• Prospecting bipartite Dark Matter through Gravitational Waves
• Nonperturbative Contributions to the Hot Electroweak Potential and the Crossover
• Non-perturbative correlation masses in the hot electroweak phase
• Comparison of Renormalization-Group and Lattice Studies of the Electroweak Phase Transition
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• Physics of the Electroweak Phase Transition at M_H <= 70 GeV in a 3-dimensional SU(2)-Higgs Model
• Nucleation at finite temperature: a gauge-invariant, perturbative framework