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Improved thermal resummation for multi-field potentials
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DOI：10.1007/JHEP09(2024)153.png)
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The resummation of large thermal corrections to the effective potential is mandatory for the accurate prediction of phase transitions. We discuss the accuracy of different prescriptions to perform this resummation at the one- and two-loop level and point out conceptual issues that appear when using a high-temperature expansion at the two-loop level. Moreover, we show how a particular prescription called partial dressing, which does not rely on a high-temperature expansion, consistently avoids these issues. We introduce a novel technique to apply this resummation method to the case of multiple mixing fields. Our approach significantly extends the range of applicability of the partial dressing prescription, making it suitable for phenomenological studies of beyond the Standard Model extensions of the Higgs sector.
Keyword:
Phase Transitions in the Early Universe
Baryo-and Leptogenesis
Higher Order Electroweak Calculations
期刊
IF:
5.5
论文数:
3.9W
被引数:
13.7W
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