# Search for R-parity violating production of single sneutrinos in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189-209 GeV

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 ${\rm e} \gamma \;{\smash{\mathop{\rightarrow}}}\;\tilde{\nu}\ell$ 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.
Document type :
Journal articles

Cited literature [17 references]

http://hal.in2p3.fr/in2p3-00011695
Contributor : Claudine Bombar <>
Submitted on : Monday, September 30, 2002 - 1:54:53 PM
Last modification on : Tuesday, April 20, 2021 - 12:00:05 PM
Long-term archiving on: : Tuesday, June 2, 2015 - 12:30:48 PM

### Identifiers

• HAL Id : in2p3-00011695, version 1

### Citation

A. Heister, S. Schael, R. Barate, R. Bruneliere, I. de Bonis, et al.. Search for R-parity violating production of single sneutrinos in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 189-209 GeV. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2002, 25, pp.1-12. ⟨in2p3-00011695⟩

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