Light stop NLSPs at the Tevatron and LHC

Yevgeny Kats, David Shih

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


How light can the stop be given current experimental constraints? Can it still be lighter than the top? In this paper, we study this and related questions in the context of gauge-mediated supersymmetry breaking, where a stop NLSP decays into a W, b and gravitino. Focusing on the case of prompt decays, we simulate several existing Tevatron and LHC analyses that would be sensitive to this scenario, and find that they allow the stop to be as light as 150GeV, mostly due to the large top production background. With more data, the existing LHC analyses will be able to push the limit up to at least 180GeV. We hope this work will motivate more dedicated experimental searches for this simple scenario, in which, for most purposes, the only free parameters are the stop mass and lifetime.

Original languageEnglish
Article number49
JournalJournal of High Energy Physics
Issue number8
StatePublished - 1 Jan 2011
Externally publishedYes


  • Supersymmetry phenomenology

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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