2016/02/03 by Mateo Garcia-Pepin, Mariano Quiros
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Electroweak interaction #False vacuum #Higgs boson #Minimal Supersymmetric Standard Model #Particle physics theoretical and experimental studies #Phase transition #Sphaleron #Standard Model (mathematical formulation) #Supersymmetry #astro-ph.CO #hep-ph
paper · pdf · doi:10.1007/jhep05(2016)177
18 pages, 8 figures
arxiv created 2016/02/03 · openalex publication_date 2016/05/01 · openalex created_date 2016/06/24 · arxiv updated 2016/06/29 · openalex updated_date 2026/08/05
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.