Aug 4 – 8, 2015
America/Detroit timezone

Search for Displaced Supersymmetry in Events with an Electron and a Muon with Large Impact Parameters

Aug 4, 2015, 4:15 PM
Vandenberg (Michigan League)


Michigan League

BSM Collider BSM Physics


Jamie Antonelli (The Ohio State University (US))


A search for new long-lived particles decaying to leptons is presented using proton-proton collisions produced by the LHC at sqrt(8)  TeV. Data used for the analysis were collected by the CMS detector and correspond to an integrated luminosity of 19.7 /fb. Events are selected with an electron and muon with opposite charges that both have transverse impact parameter values between 0.02 and 2 cm. The search has been designed to be sensitive to a wide range of models with nonprompt electron-muon final states. Limits are set on the “displaced supersymmetry” model, with pair production of top squarks decaying into an electron-muon final state via R-parity-violating interactions. The results are the most restrictive to date on this model, with the most stringent limit being obtained for a top squark lifetime corresponding to ctau = 2  cm, excluding masses below 790 GeV at 95% confidence level.
Oral or Poster Presentation Oral

Primary author

Jamie Antonelli (The Ohio State University (US))


Andrew Evan Hart (Ohio State University (US)) Bingxuan Liu (Ohio State University (US)) Chris Hill (Ohio State University (US)) Freya Blekman (IIHE, Vrije Universiteit Brussel (BE)) Natalie Heracleous (Vrije Universiteit Brussel (BE)) Quentin Philippe Python (Vrije Universiteit Brussel (BE))

Presentation materials