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

Huber, Stephan J, Konstandin, Thomas, Nardini, Germano and Rues, Ingo (2016) Detectable gravitational waves from very strong phase transitions in the general NMSSM. Journal of Cosmology and Astroparticle Physics, 2016 (03). 036. ISSN 1475-7516

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Abstract

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: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Theoretical Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Richard Chambers
Date Deposited: 17 Jan 2017 12:16
Last Modified: 07 Mar 2017 09:00
URI: http://sro.sussex.ac.uk/id/eprint/66235

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