Flavor in supersymmetry with an extended R symmetry

Graham D. Kribs, Erich Poppitz, Neal Weiner

    Research output: Contribution to journalArticle

    Abstract

    We propose a new solution to the supersymmetric flavor problem without flavor-blind mediation. Our proposal is to enforce a continuous or a suitably large discrete R-symmetry on weak scale supersymmetry, so that Majorana gaugino masses, trilinear A terms, and the μ term are forbidden. We find that replacing the minimal supersymmetric standard model with an R-symmetric supersymmetric model allows order one flavor-violating soft masses, even for squarks of order a few hundred GeV. The minimal R-symmetric supersymmetric model contains Dirac gaugino masses and R-symmetric Higgsino masses with no left-right mixing in the squark or slepton sector. Dirac gaugino masses of order a few TeV with vanishing A terms solve most flavor problems, while the R-symmetric Higgs sector becomes important at large tan β. K can be accommodated if CP is preserved in the SUSY breaking sector, or if there is a moderate flavor degeneracy, which can arise naturally. ′/, as well as neutron and electron electric dipole moments, are easily within experimental bounds. The most striking phenomenological distinction of this model is the order one flavor violation in the squark and slepton sector, while the Dirac gaugino masses tend to be significantly heavier than the corresponding squark and slepton masses.

    Original languageEnglish (US)
    Article number055010
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume78
    Issue number5
    DOIs
    StatePublished - Sep 17 2008

    Fingerprint

    supersymmetry
    symmetry
    sectors
    mediation
    electric moments
    electric dipoles
    proposals
    dipole moments
    neutrons
    electrons

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Flavor in supersymmetry with an extended R symmetry. / Kribs, Graham D.; Poppitz, Erich; Weiner, Neal.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 78, No. 5, 055010, 17.09.2008.

    Research output: Contribution to journalArticle

    Kribs, Graham D. ; Poppitz, Erich ; Weiner, Neal. / Flavor in supersymmetry with an extended R symmetry. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2008 ; Vol. 78, No. 5.
    @article{d7d405c1c2584ca5b15fc1798339f554,
    title = "Flavor in supersymmetry with an extended R symmetry",
    abstract = "We propose a new solution to the supersymmetric flavor problem without flavor-blind mediation. Our proposal is to enforce a continuous or a suitably large discrete R-symmetry on weak scale supersymmetry, so that Majorana gaugino masses, trilinear A terms, and the μ term are forbidden. We find that replacing the minimal supersymmetric standard model with an R-symmetric supersymmetric model allows order one flavor-violating soft masses, even for squarks of order a few hundred GeV. The minimal R-symmetric supersymmetric model contains Dirac gaugino masses and R-symmetric Higgsino masses with no left-right mixing in the squark or slepton sector. Dirac gaugino masses of order a few TeV with vanishing A terms solve most flavor problems, while the R-symmetric Higgs sector becomes important at large tan β. K can be accommodated if CP is preserved in the SUSY breaking sector, or if there is a moderate flavor degeneracy, which can arise naturally. ′/, as well as neutron and electron electric dipole moments, are easily within experimental bounds. The most striking phenomenological distinction of this model is the order one flavor violation in the squark and slepton sector, while the Dirac gaugino masses tend to be significantly heavier than the corresponding squark and slepton masses.",
    author = "Kribs, {Graham D.} and Erich Poppitz and Neal Weiner",
    year = "2008",
    month = "9",
    day = "17",
    doi = "10.1103/PhysRevD.78.055010",
    language = "English (US)",
    volume = "78",
    journal = "Physical review D: Particles and fields",
    issn = "1550-7998",
    publisher = "American Physical Society",
    number = "5",

    }

    TY - JOUR

    T1 - Flavor in supersymmetry with an extended R symmetry

    AU - Kribs, Graham D.

    AU - Poppitz, Erich

    AU - Weiner, Neal

    PY - 2008/9/17

    Y1 - 2008/9/17

    N2 - We propose a new solution to the supersymmetric flavor problem without flavor-blind mediation. Our proposal is to enforce a continuous or a suitably large discrete R-symmetry on weak scale supersymmetry, so that Majorana gaugino masses, trilinear A terms, and the μ term are forbidden. We find that replacing the minimal supersymmetric standard model with an R-symmetric supersymmetric model allows order one flavor-violating soft masses, even for squarks of order a few hundred GeV. The minimal R-symmetric supersymmetric model contains Dirac gaugino masses and R-symmetric Higgsino masses with no left-right mixing in the squark or slepton sector. Dirac gaugino masses of order a few TeV with vanishing A terms solve most flavor problems, while the R-symmetric Higgs sector becomes important at large tan β. K can be accommodated if CP is preserved in the SUSY breaking sector, or if there is a moderate flavor degeneracy, which can arise naturally. ′/, as well as neutron and electron electric dipole moments, are easily within experimental bounds. The most striking phenomenological distinction of this model is the order one flavor violation in the squark and slepton sector, while the Dirac gaugino masses tend to be significantly heavier than the corresponding squark and slepton masses.

    AB - We propose a new solution to the supersymmetric flavor problem without flavor-blind mediation. Our proposal is to enforce a continuous or a suitably large discrete R-symmetry on weak scale supersymmetry, so that Majorana gaugino masses, trilinear A terms, and the μ term are forbidden. We find that replacing the minimal supersymmetric standard model with an R-symmetric supersymmetric model allows order one flavor-violating soft masses, even for squarks of order a few hundred GeV. The minimal R-symmetric supersymmetric model contains Dirac gaugino masses and R-symmetric Higgsino masses with no left-right mixing in the squark or slepton sector. Dirac gaugino masses of order a few TeV with vanishing A terms solve most flavor problems, while the R-symmetric Higgs sector becomes important at large tan β. K can be accommodated if CP is preserved in the SUSY breaking sector, or if there is a moderate flavor degeneracy, which can arise naturally. ′/, as well as neutron and electron electric dipole moments, are easily within experimental bounds. The most striking phenomenological distinction of this model is the order one flavor violation in the squark and slepton sector, while the Dirac gaugino masses tend to be significantly heavier than the corresponding squark and slepton masses.

    UR - http://www.scopus.com/inward/record.url?scp=52649140133&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=52649140133&partnerID=8YFLogxK

    U2 - 10.1103/PhysRevD.78.055010

    DO - 10.1103/PhysRevD.78.055010

    M3 - Article

    VL - 78

    JO - Physical review D: Particles and fields

    JF - Physical review D: Particles and fields

    SN - 1550-7998

    IS - 5

    M1 - 055010

    ER -