Lepton flavour violation in future linear colliders in the long-lived stau NLSP scenario

Alejandro Ibarra, Sourov Roy

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9 Scopus citations

Abstract

We analyze the prospects of observing lepton flavour violation in future e-e- and e+e- linear colliders in scenarios where the gravitino is the lightest supersymmetric particle, and the stau is the next-to-lightest supersymmetric particle. The signals consist of multilepton final states with two heavily ionizing charged tracks produced by the long-lived staus. The Standard Model backgrounds are very small and the supersymmetric backgrounds can be kept well under control by the use of suitable kinematical cuts. We discuss in particular the potential of the projected International Linear Collider to discover lepton flavour violation in this class of scenarios, and we compare the estimated sensitivity with the constraints stemming from the non-observation of rare decays.

Original languageEnglish
Article number059
JournalJournal of High Energy Physics
Volume2007
Issue number5
DOIs
StatePublished - 1 May 2007
Externally publishedYes

Keywords

  • Rare decays
  • Supergravity models
  • Supersymmetric standard model
  • Supersymmetry phenomenology

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