2014/10/20 by Priyotosh Bandyopadhyay, Bandyopadhyay, Priyotosh, Stefano Di Chiara +5
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.48550/arxiv.1410.5397
7 pages, 9 figures, ICHEP2014 parallel talk proceeding
arxiv created 2014/10/20 · openalex publication_date 2014/10/20 · arxiv updated 2014/10/21 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this study we investigate the phenomenological viability of the Y=0 Triplet Extended Supersymmetric Standard Model (TESSM) by comparing its predictions with the current Higgs data from ATLAS, CMS, and Tevatron, as well as the measured value of the Bs→ Xs γ branching ratio. We scan numerically the parameter space for data points generating the measured particle mass spectrum and also satisfying current direct search constraints on new particles. We require all the couplings to be perturbative up to the scale Λ\rm UV=104 TeV, by running them with newly calculated two loop beta functions, and find that TESSM retains perturbativity as long as λ, the triplet coupling to the two Higgs doublets, is smaller than 1.34 in absolute value. For |λ|\gtrsim 0.8 we show that the fine-tuning associated to each viable data point can be greatly reduced as compared to values attainable in MSSM. Finally, we perform a fit by taking into account 58 Higgs physics observables along with Br(Bs→ Xs γ), for which we calculate the NLO prediction within TESSM. We find that, although naturality prefers a large |λ|, the experimental data disfavors it compared to the small |λ| region, because of the low energy observable Br(Bs→ Xs γ).