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

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. Furthermore, 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.
Authors:
ORCiD logo [1] ;  [2] ;  [3]
  1. Durham Univ., Durham (United Kingdom)
  2. Univ. de Valencia-CSIC, Valencia (Spain); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
  3. Univ. of Bern, Bern (Switzerland); Univ. of Stavanger, Stavanger (Norway)
Publication Date:
Report Number(s):
arXiv:1802.02168; FERMILAB-PUB-18-241-T
Journal ID: ISSN 1029-8479; 1653676
Grant/Contract Number:
AC02-07CH11359
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 7; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Higgs Physics
OSTI Identifier:
1462227