General neutralino NLSPs at the early LHC

Joshua T. Ruderman, David Shih

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Gauge mediated supersymmetry breaking (GMSB) is a theoretically well-motivated framework with rich and varied collider phenomenology. In this paper, we study the Tevatron limits and LHC discovery potential for a wide class of GMSB scenarios in which the next-to-lightest superpartner (NLSP) is a promptly-decaying neutralino. These scenarios give rise to signatures involving hard photons, W's, Z's, jets and/or higgses, plus missing energy. In order to characterize these signatures, we define a small number of minimal spectra, in the context of General Gauge Mediation, which are parameterized by the mass of the NLSP and the gluino. Using these minimal spectra, we determine the most promising discovery channels for general neutralino NLSPs. We find that the 2010 dataset can already cover new ground with strong production for all NLSP types. With the upcoming 2011-2012 dataset, we find that the LHC will also have sensitivity to direct electroweak production of neutralino NLSPs.

    Original languageEnglish (US)
    Article number159
    JournalJournal of High Energy Physics
    Volume2012
    Issue number8
    DOIs
    StatePublished - 2012

    Keywords

    • Supersymmetry phenomenology

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

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