Cosmological phase transitions: is effective field theory just a toy?
Abstract To obtain a first order phase transition requires large new physics corrections to the Standard Model (SM) Higgs potential. This implies that the scale of new physics is relatively low, raising the question whether an effective field theory (EFT) description can be used to analyse the phase...
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doaj-31085a71d45149b6a53aee2abf715c722021-04-04T11:06:51ZengSpringerOpenJournal of High Energy Physics1029-84792021-03-012021312610.1007/JHEP03(2021)280Cosmological phase transitions: is effective field theory just a toy?Marieke Postma0Graham White1NikhefKavli IPMU (WPI), UTIAS, The University of TokyoAbstract To obtain a first order phase transition requires large new physics corrections to the Standard Model (SM) Higgs potential. This implies that the scale of new physics is relatively low, raising the question whether an effective field theory (EFT) description can be used to analyse the phase transition in a (nearly) model-independent way. We show analytically and numerically that first order phase transitions in perturbative extensions of the SM cannot be described by the SM-EFT. The exception are Higgs-singlet extension with tree-level matching; but even in this case the SM-EFT can only capture part of the full parameter space, and if truncated at dim-6 operators, the description is at most qualitative. We also comment on the applicability of EFT techniques to dark sector phase transitions.https://doi.org/10.1007/JHEP03(2021)280Beyond Standard ModelEffective Field TheoriesHiggs Physics |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marieke Postma Graham White |
spellingShingle |
Marieke Postma Graham White Cosmological phase transitions: is effective field theory just a toy? Journal of High Energy Physics Beyond Standard Model Effective Field Theories Higgs Physics |
author_facet |
Marieke Postma Graham White |
author_sort |
Marieke Postma |
title |
Cosmological phase transitions: is effective field theory just a toy? |
title_short |
Cosmological phase transitions: is effective field theory just a toy? |
title_full |
Cosmological phase transitions: is effective field theory just a toy? |
title_fullStr |
Cosmological phase transitions: is effective field theory just a toy? |
title_full_unstemmed |
Cosmological phase transitions: is effective field theory just a toy? |
title_sort |
cosmological phase transitions: is effective field theory just a toy? |
publisher |
SpringerOpen |
series |
Journal of High Energy Physics |
issn |
1029-8479 |
publishDate |
2021-03-01 |
description |
Abstract To obtain a first order phase transition requires large new physics corrections to the Standard Model (SM) Higgs potential. This implies that the scale of new physics is relatively low, raising the question whether an effective field theory (EFT) description can be used to analyse the phase transition in a (nearly) model-independent way. We show analytically and numerically that first order phase transitions in perturbative extensions of the SM cannot be described by the SM-EFT. The exception are Higgs-singlet extension with tree-level matching; but even in this case the SM-EFT can only capture part of the full parameter space, and if truncated at dim-6 operators, the description is at most qualitative. We also comment on the applicability of EFT techniques to dark sector phase transitions. |
topic |
Beyond Standard Model Effective Field Theories Higgs Physics |
url |
https://doi.org/10.1007/JHEP03(2021)280 |
work_keys_str_mv |
AT mariekepostma cosmologicalphasetransitionsiseffectivefieldtheoryjustatoy AT grahamwhite cosmologicalphasetransitionsiseffectivefieldtheoryjustatoy |
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1721543062766747648 |