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

Chala, Mikael; Krause, Claudius; Nardini, Germano (2018). Signals of the electroweak phase transition at colliders and gravitational wave observatories. Journal of High Energy Physics, 2018(7) Springer 10.1007/JHEP07(2018)062

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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.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC)
08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Nardini, Germano

Subjects:

500 Science > 530 Physics

ISSN:

1029-8479

Publisher:

Springer

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

30 Aug 2018 15:31

Last Modified:

25 Oct 2019 12:25

Publisher DOI:

10.1007/JHEP07(2018)062

ArXiv ID:

1802.02168

BORIS DOI:

10.7892/boris.119670

URI:

https://boris.unibe.ch/id/eprint/119670

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