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arXiv · 2102.11145

Robust approach to thermal resummation: Standard Model meets a singlet

Philipp M. Schicho·Tuomas V. I. Tenkanen·Juuso Österman
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Abstract

Perturbation theory alone fails to describe thermodynamics of the electroweak phase transition. We review a technique combining perturbative and non-perturbative methods to overcome this challenge. Accordingly, the principal theme is a tutorial of high-temperature dimensional reduction. We present an explicit derivation with a real singlet scalar and compute the thermal effective potential at two-loop order. In particular, we detail the dimensional reduction for a real-singlet extended Standard Model. The resulting effective theory will impact future non-perturbative studies based on lattice simulations as well as purely perturbative investigations.

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Philipp M. Schicho, Tuomas V. I. Tenkanen, Juuso Österman. 2021-02-22. Robust approach to thermal resummation: Standard Model meets a singlet. https://doi.org/10.1007/jhep06(2021)130

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