Light nondegenerate squarks at the LHC

Rakhi Mahbubani, Michele Papucci, Gilad Perez, Joshua T. Ruderman, Andreas Weiler

    Research output: Contribution to journalArticle

    Abstract

    Experimental bounds on squarks of the first two generations assume their masses to be eightfold degenerate and consequently constrain them to be heavier than ∼1.4 TeV when the gluino is lighter than 2.5 TeV. The assumption of squark-mass universality is neither a direct consequence of minimal flavor violation (MFV), which allows for splittings within squark generations, nor a prediction of supersymmetric alignment models, which allow for splittings between generations. We reinterpret a recent CMS multijet plus missing energy search allowing for deviations from U(2) universality and find significantly weakened squark bounds: A 400 GeV second-generation squark singlet is allowed, even with exclusive decays to a massless neutralino, and, in an MFV scenario, the down-type squark singlets can be as light as 600 GeV, provided the up-type singlets are pushed up to 1.8 TeV, for a 1.5 TeV gluino and decoupled doublet squarks.

    Original languageEnglish (US)
    Article number151804
    JournalPhysical Review Letters
    Volume110
    Issue number15
    DOIs
    StatePublished - Apr 10 2013

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    alignment
    deviation
    decay
    predictions
    energy

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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    Mahbubani, R., Papucci, M., Perez, G., Ruderman, J. T., & Weiler, A. (2013). Light nondegenerate squarks at the LHC. Physical Review Letters, 110(15), [151804]. https://doi.org/10.1103/PhysRevLett.110.151804

    Light nondegenerate squarks at the LHC. / Mahbubani, Rakhi; Papucci, Michele; Perez, Gilad; Ruderman, Joshua T.; Weiler, Andreas.

    In: Physical Review Letters, Vol. 110, No. 15, 151804, 10.04.2013.

    Research output: Contribution to journalArticle

    Mahbubani, R, Papucci, M, Perez, G, Ruderman, JT & Weiler, A 2013, 'Light nondegenerate squarks at the LHC', Physical Review Letters, vol. 110, no. 15, 151804. https://doi.org/10.1103/PhysRevLett.110.151804
    Mahbubani R, Papucci M, Perez G, Ruderman JT, Weiler A. Light nondegenerate squarks at the LHC. Physical Review Letters. 2013 Apr 10;110(15). 151804. https://doi.org/10.1103/PhysRevLett.110.151804
    Mahbubani, Rakhi ; Papucci, Michele ; Perez, Gilad ; Ruderman, Joshua T. ; Weiler, Andreas. / Light nondegenerate squarks at the LHC. In: Physical Review Letters. 2013 ; Vol. 110, No. 15.
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