2004/01/20 by Piyush Kumar, Joseph D. Lykken, Joseph. D Lykken
Computer Science · Physics and Astronomy · Social Sciences · #Computational Physics and Python Applications #Dark matter #Gravitino #Hidden sector #Higgs boson #Higgs sector #International Science and Diplomacy #Lightest Supersymmetric Particle #Minimal Supersymmetric Standard Model #Observable #Particle physics theoretical and experimental studies #Supersymmetry #Supersymmetry breaking #hep-ph
paper · pdf · doi:10.1088/1126-6708/2004/07/001
published as JHEP 0407 (2004) 001 · 23 pages, 3 figures, LaTeX
arxiv created 2004/01/20 · openalex publication_date 2004/07/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We revisit the possibility of "visible sector" SUSY models: models which are straightforward renormalizable extensions of the Minimal Supersymmetric Standard Model (MSSM), where SUSY is broken at tree level. Models of this type were abandoned twenty years ago due to phenomenological problems, which we review. We then demonstrate that it is possible to construct simple phenomenologically viable visible sector SUSY models. Such models are indeed very constrained, and have some inelegant features. They also have interesting and distinctive phenomenology. Our models predict light gauginos and very heavy squarks and sleptons. The squarks and sleptons may not be observable at the LHC. The LSP is a stable very light gravitino with a significant Higgsino admixture. The NLSP is mostly Bino. The Higgs boson is naturally heavy. Proton decay is sufficently and naturally suppressed, even for a cutoff scale as low as 108 GeV. The lightest particle of the O'Raifeartaigh sector (the LOP) is stable, and is an interesting cold dark matter candidate.