Signals of the electroweak phase transition at colliders and gravitational wave observatories

Abstract If the electroweak phase transition (EWPT) is of strongly first order due to higher dimensional operators, the scale of new physics generating them is at the TeV scale or below. In this case the effective-field theory (EFT) neglecting operators of dimension higher than six may overlook term...

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Main Authors: Mikael Chala, Claudius Krause, Germano Nardini
Format: Article
Language:English
Published: SpringerOpen 2018-07-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP07(2018)062
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author Mikael Chala
Claudius Krause
Germano Nardini
author_facet Mikael Chala
Claudius Krause
Germano Nardini
author_sort Mikael Chala
collection DOAJ
description Abstract If the electroweak phase transition (EWPT) is of strongly first order due to higher dimensional operators, the scale of new physics generating them is at the TeV scale or below. In this case the effective-field theory (EFT) neglecting operators of dimension higher than six may overlook terms that are relevant for the EWPT analysis. In this article we study the EWPT in the EFT to dimension eight. We estimate the reach of the future gravitational wave observatory LISA for probing the region in which the EWPT is strongly first order and compare it with the capabilities of the Higgs measurements via double-Higgs production at current and future colliders. We also match different UV models to the previously mentioned dimension-eight EFT and demonstrate that, from the top-down point of view, the double-Higgs production is not the best signal to explore these scenarios.
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spelling doaj.art-fdbade99612e4afbb3dcce4b2502ef912022-12-22T00:14:19ZengSpringerOpenJournal of High Energy Physics1029-84792018-07-012018712910.1007/JHEP07(2018)062Signals of the electroweak phase transition at colliders and gravitational wave observatoriesMikael Chala0Claudius Krause1Germano Nardini2Institute of Particle Physics Phenomenology, Physics Department, Durham UniversityIFIC, Universitat de València-CSICAlbert Einstein Center, Institute for Theoretical Physics, University of BernAbstract If the electroweak phase transition (EWPT) is of strongly first order due to higher dimensional operators, the scale of new physics generating them is at the TeV scale or below. In this case the effective-field theory (EFT) neglecting operators of dimension higher than six may overlook terms that are relevant for the EWPT analysis. In this article we study the EWPT in the EFT to dimension eight. We estimate the reach of the future gravitational wave observatory LISA for probing the region in which the EWPT is strongly first order and compare it with the capabilities of the Higgs measurements via double-Higgs production at current and future colliders. We also match different UV models to the previously mentioned dimension-eight EFT and demonstrate that, from the top-down point of view, the double-Higgs production is not the best signal to explore these scenarios.http://link.springer.com/article/10.1007/JHEP07(2018)062Beyond Standard ModelHiggs Physics
spellingShingle Mikael Chala
Claudius Krause
Germano Nardini
Signals of the electroweak phase transition at colliders and gravitational wave observatories
Journal of High Energy Physics
Beyond Standard Model
Higgs Physics
title Signals of the electroweak phase transition at colliders and gravitational wave observatories
title_full Signals of the electroweak phase transition at colliders and gravitational wave observatories
title_fullStr Signals of the electroweak phase transition at colliders and gravitational wave observatories
title_full_unstemmed Signals of the electroweak phase transition at colliders and gravitational wave observatories
title_short Signals of the electroweak phase transition at colliders and gravitational wave observatories
title_sort signals of the electroweak phase transition at colliders and gravitational wave observatories
topic Beyond Standard Model
Higgs Physics
url http://link.springer.com/article/10.1007/JHEP07(2018)062
work_keys_str_mv AT mikaelchala signalsoftheelectroweakphasetransitionatcollidersandgravitationalwaveobservatories
AT claudiuskrause signalsoftheelectroweakphasetransitionatcollidersandgravitationalwaveobservatories
AT germanonardini signalsoftheelectroweakphasetransitionatcollidersandgravitationalwaveobservatories