Improved thermal resummation for multi-field potentials

• Verfasst von: Bahl, Henning [VerfasserIn]
• Verfasst von: Carena, Marcela [VerfasserIn]
• Verfasst von: Ireland, Aurora [VerfasserIn]
• Verfasst von: Wagner, Carlos E. M. [VerfasserIn]
• Titel: Improved thermal resummation for multi-field potentials
• Verf.angabe: Henning Bahl, Marcela Carena, Aurora Ireland and Carlos E. M. Wagner
• E-Jahr: 2024
• Jahr: September 20, 2024
• Umfang: 50 S.
• Fussnoten: Gesehen am 27.03.2025
• Titel Quelle: Enthalten in: Journal of high energy physics
• Ort Quelle: Berlin : Springer, 1997
• Jahr Quelle: 2024
• Band/Heft Quelle: 2024(2024), 9, Artikel-ID 153, Seite 153-1-153-50
• ISSN Quelle: 1029-8479
• DOI: doi:10.1007/JHEP09(2024)153
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Baryo-and Leptogenesis
• Sach-SW: Higher Order Electroweak Calculations
• Sach-SW: Phase Transitions in the Early Universe
• K10plus-PPN: 1920737588

Abstract

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.