Supersymmetry with a sister Higgs boson

Daniele S.M. Alves, Patrick J. Fox, Neal Weiner

    Research output: Contribution to journalArticle

    Abstract

    We consider a simple addition to the minimal supersymmetric Standard Model (MSSM) of a "sister Higgs" (Σd), a Higgs field that participates in electroweak symmetry breaking but does not give any direct masses to Standard Model matter fields. If this new field carries charge under a new gauge group, Gs, the Higgs mass is naturally much larger than in the MSSM due to a next-to-minimal supersymmetric Standard Model-type interaction, but with Σd playing the role of Hd. The addition of the sister Higgs allows new R-parity violating operators ΣdHdE, which are less constrained than a conventional leptonic R-parity violation. Unification motivates the presence of colored Gs-charged fields, whose production can lead to new b-rich final states and modifications to decays of gluinos, as well as new opportunities for R-parity violation. The presence of additional sister charges allows the possibilities that a lightest sister-charged particle (LSiP) could be stable, although we find the possibility of a LSiP dark matter candidate is generally very constrained.

    Original languageEnglish (US)
    Article number055003
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume91
    Issue number5
    DOIs
    StatePublished - Mar 3 2015

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics
    • Physics and Astronomy (miscellaneous)

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