Work

Strong electroweak phase transition from Supersymmetric Custodial Triplets

Year: 2016

Type: article

Abstract: The Supersymmetric Custodial Triplet Model, a supersymmetric generalization of the Georgi-Machacek model, has proven to be an interesting modification of the MSSM. It extends the MSSM Higgs sector by three extra SU(2) L triplets in such a way that approximate custodial invariance is preserved and ρ-parameter deviations are kept under control. By means of a sizeable triplet contribution to electroweak breaking the model is able to generate a barrier at tree level between the false vacuum and the electroweak one. This will result in a strong first order phase transition for an important region of the parameter space. We also look at the gravitational waves that could be generated as a result of the phase transition and show how future interferometers could be used as a probe of the model.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep05(2016)177

Authors: Mateo Garcia-Pepin, Mariano Quiros

Institutions: Institute for High Energy Physics, Barcelona Institute of Science and Technology, Institució Catalana de Recerca i Estudis Avançats

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Generalitat de Catalunya

Award: G2634511004