Search for R-Parity Violating Production of Single Sneutrinos in e+e- Collisions at sqrt(s) = 189-209GeV

Abstract

A search for single sneutrino production under the assumption that R-parity is violated via a single dominant $LL\bar{E}$ coupling is presented. This search considers the process $\mathrm{e}\gamma \to \tilde{\nu }\ell$ and is performed using the data collected by the ALEPH detector at centre-of-mass energies from 189 GeV up to 209 GeV corresponding to an integrated luminosity of 637.1 ${\mathrm{pb}}^{-1}$. The numbers of observed candidate events are in agreement with Standard Model expectations and 95% confidence level upper limits on five of the $LL\bar{E}$ couplings are given as a function of the assumed sneutrino mass.

22 pages, 14 figures

Cited by in corpus (8)

• R-parity violating supersymmetry
• Hidden Higgs Decaying to Lepton Jets
• Search for Supersymmetric Particles with R-Parity Violating Decays in e+e- Collisions at sqrt{s} up to 209GeV
• Unparticles and Muon Decay
• Searching for left sneutrino LSP at the LHC
• Searches for Supersymmetry at High-Energy Colliders
• Search for Squarks in R-parity Violating Supersymmetry in ep Collisions at HERA
• QCD at high energy (experiments)