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A to Z of the muon anomalous magnetic moment in the MSSM with Pati-Salam at the GUT scale

2016/05/31 by Alexander S. Belyaev, José E. Camargo-Molina, Steve F. King +3 · 15 citations
Computer Science · Physics and Astronomy · #Anomalous magnetic dipole moment #Computational Physics and Python Applications #Dark matter #Higgs boson #Minimal Supersymmetric Standard Model #Muon #Neutrino #Neutrino Physics Research #Parameter space #Particle physics theoretical and experimental studies #Scalar (mathematics) #Standard Model (mathematical formulation) #hep-ph

paper · pdf · doi:10.1007/jhep06(2016)142

published in Journal of High Energy Physics 2016(6) (Springer Nature) · 29 pages, 14 figures; [v2] added references, corrected minor typos

openalex publication_date 2016/06/01 · openalex created_date 2016/06/24 · arxiv created 2016/06/28 · arxiv updated 2016/06/29 · openalex updated_date 2026/08/06

Abstract

We analyse the low energy predictions of the minimal supersymmetric standard model (MSSM) arising from a GUT scale Pati-Salam gauge group further constrained by an A 4 × Z 5 family symmetry, resulting in four soft scalar masses at the GUT scale: one left-handed soft mass m 0 and three right-handed soft masses m 1 , m 2 , m 3, one for each generation. We demonstrate that this model, which was initially developed to describe the neutrino sector, can explain collider and non-collider measurements such as the dark matter relic density, the Higgs boson mass and, in particular, the anomalous magnetic moment of the muon (g − 2) μ . Since about two decades, (g − 2) μ suffers a puzzling about 3σ excessoftheexperimentallymeasuredvalueoverthetheoreticalprediction,whichour model is able to fully resolve. As the consequence of this resolution, our model predicts specific regions of the parameter space with the specific properties including light smuons and neutralinos, which could also potentially explain di-lepton excesses observed by CMS and ATLAS.

Citations