Search for R-parity violating production of single sneutrinos in e+ e- collisions at s**(1/2) = 189-GeV to 209-GeV

Heister, A.;Lemaitre, Vincent;et.al.
(2002) European Physical Journal C. Particles and Fields — Vol. C25, p. 1-12 (2002)

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Authors
  • Heister, A.Physikalisches Institut das RWTH-Aachen, 52056 Aachen, Germany, DE
    Author
  • Lemaitre, VincentUCLouvain
    Author
  • et. al.
Abstract
(en) 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 ${\rm e} \gamma {\smash{\mathop{\to}}} \tilde{\nu}\ell$ 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. Comment: 22 pages, 14 figures
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Heister, A., Lemaitre, V., & et al. (2002). Search for R-parity violating production of single sneutrinos in e+ e- collisions at s**(1/2) = 189-GeV to 209-GeV. European Physical Journal C. Particles and Fields, C25, 1-12. https://doi.org/10.1007/s10052-002-1010-2 (Original work published 2002)