Same-sign trileptons as a signal of sneutrino lightest supersymmetric partlcle

Abstract

Contrary to common expectation, a left-sneutrinos can occasionally be the lightest supersymmet- ric particle. This has important implications in both collider and dark matter studies. We show that same-sign tri-lepton (SS3L) events at the Large Hadron Collider, with any lepton having opposite sign vetoed, distinguish such scenarios, up to gluino masses exceeding 2 TeV. The jets + M ET signal rate is somewhat suppressed in this case, thus enhancing the scope of leptonic signals.

Version published in Phys.Lett. B

References in corpus (6)

• CalcHEP 3.4 for collider physics within and beyond the Standard Model
• MadAnalysis 5, a user-friendly framework for collider phenomenology
• Dark matter production in the early Universe: beyond the thermal WIMP paradigm
• SO(10) SUSY GUTs, the gravitino problem, non-thermal leptogenesis and axino dark matter
• Resurrecting Sneutrino (${\tilde{\nu }}_L$) Dark Matter in light of Neutrino Mass and LUX
• Gravitino Dark Matter in Split Supersymmetry with Bilinear R-Parity Violation

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