Search for R-parity violating decays of supersymmetric particles in ${\mathrm e}^+{\mathrm e}^-$ collisions at centre-of-mass energies near $183\,\mbox {GeV}$

The Collaboration:     R. Barate - et al.

doi:doi:10.1007/s100520000284

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2024 Impact factor 4.8

Particles and Fields

Eur. Phys. J. C 13, 29-46
DOI 10.1007/s100520000284

Search for R-parity violating decays of supersymmetric particles in e⁺e^- collisions at centre-of-mass energies near $183\,\mbox {GeV}$

The ALEPH Collaboration

R. Barate - et al.

Laboratoire de Physique des Particules (LAPP), IN²P³-CNRS, 74019 Annecy-le-Vieux Cedex, France

Received: 9 July 1999 / Published online: 3 February 2000 - © Springer-Verlag 2000

Abstract
Searches for pair-production of supersymmetric particles under the assumption that R-parity is violated via a single dominant $LL{\bar E}$ , $LQ{\bar D}$ or ${\bar U} {\bar D} {\bar D}$ coupling are performed using the data collected by the ALEPH collaboration at centre-of-mass energies of 181-184 $\mbox {GeV}$ . The observed candidate events in the data are in agreement with the Standard Model expectations. Upper limits on the production cross-sections and lower limits on the masses of charginos, sleptons, squarks and sneutrinos are derived.