Goldstini can give the higgs a boost

Jesse Thaler, Zachary Thomas

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Supersymmetric collider phenomenology depends crucially on whether the lightest observable-sector supersymmetric particle (LOSP) decays, and if so, what the LOSP decay products are. For instance, in SUSY models where the gravitino is lighter than the LOSP, the LOSP decays to its superpartner and a longitudinal gravitino via supercurrent couplings. In this paper, we show that LOSP decays can be substantially modiL* ed when there are multiple sectors that break supersymmetry, where in addition to the gravitino there are light uneaten goldstini. As a particularly striking example, a bino-like LOSP can have a near 100% branching fraction to a higgs boson and an uneaten goldstino, even if the LOSP has negligible higgsino fraction. This occurs because the uneaten goldstino is unconstrained by the supercurrent, allowing additional operators to mediate LOSP decay. These operators can be enhanced in the presence of a U(1)R symmetry, leading to copious boosted higgs production in SUSY cascade decays.

Original languageEnglish (US)
Article number60
JournalJournal of High Energy Physics
Volume2011
Issue number7
DOIs
StatePublished - Jan 1 2011

Keywords

  • Beyond Standard Model
  • Supersymmetric Standard Model
  • Supersymmetry Breaking

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