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Crossover and mass gap of the SU(2)-Higgs model at high temperature

Wilfried Buchmuller
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Abstract

Analytic estimates of screening masses in the symmetric, high-temperature phase of the SU(2)-Higgs model are reviewed. The size of the mass gap in the symmetric phase is closely related to the critical Higgs mass where the first-order electroweak phase transition changes to a smooth crossover. We also discuss some conjectures concerning the connection between the screening masses of propagators in a fixed gauge and screening masses of gauge-invariant operators.

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Wilfried Buchmuller. 1997-08-18. Crossover and mass gap of the SU(2)-Higgs model at high temperature. https://arxiv.org/abs/hep-ph/9708381

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