Journal article
Search for R-parity breaking sneutrino exchange at LEP
Abstract
We report on a search for R-parity breaking effects due to supersymmetric tau-sneutrino exchange in the reactions e+e− → e+e− and e+e− → μ+μ− at centre-of-mass energies from 91 GeV to 172 GeV, using the L3 detector at LEP. No evidence for deviations from the Standard Model expectations of the measured cross sections and forward-backward asymmetries for these reactions is found. Upper limits for the couplings λ131 and λ232 for sneutrino masses …
Authors
Collaboration L; Acciarri M; Adriani O; Aguilar-Benitez M; Ahlen S; Alcaraz J; Alemanni G; Allaby J; Aloisio A; Alverson G
Journal
Physics Letters B, Vol. 414, No. 3-4, pp. 373–381
Publisher
Elsevier
Publication Date
November 1997
DOI
10.1016/s0370-2693(97)01200-8
ISSN
0370-2693