Detectable gravitational waves from very strong phase transitions in the general NMSSM

Huber, Stephan J.; Konstandin, Thomas; Nardini, Germano; Rues, Ingo (2016). Detectable gravitational waves from very strong phase transitions in the general NMSSM. Journal of cosmology and astroparticle physics, 2016(03), 036. Institute of Physics Publishing IOP 10.1088/1475-7516/2016/03/036

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We study the general NMSSM with an emphasis on the parameter regions with a very strong first-order electroweak phase transition (EWPT). In the presence of heavy fields coupled to the Higgs sector, the analysis can be problematic due to the existence of sizable radiative corrections. In this paper we propose a subtraction scheme that helps to circumvent this problem. For simplicity we focus on a parameter region that is by construction hidden from the current collider searches. The analysis proves that (at least) in the identified parameter region the EWPT can be very strong and striking gravitational wave signals can be produced. The corresponding gravitational stochastic background can potentially be detected at the planned space-based gravitational wave observatory eLISA, depending on the specific experiment design that will be approved.

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:

1475-7516

Publisher:

Institute of Physics Publishing IOP

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

30 Aug 2016 14:15

Last Modified:

30 Aug 2016 14:15

Publisher DOI:

10.1088/1475-7516/2016/03/036

ArXiv ID:

1512.06357

BORIS DOI:

10.7892/boris.86275

URI:

https://boris.unibe.ch/id/eprint/86275

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