Can the Aleph Four-Jet Excess be Explained in a Supersymmetric Model with R-Parity Violation?
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We investigate the possibility that the excess of four-jet events in $e^+e^-$ collisions at LEP-1.5 which has been reported by the ALEPH Collaboration could be due to the production of charginos or neutralinos, followed by their decay into quark jets through baryon number-violating ($λ^{\prime\prime}$) couplings. An estimate at the parton level shows, however, that these events cannot be due to neutralinos because of the low cross-section, and is unlikely to be due to the production of chargino pairs because of the largely different event shapes.
31 pages, Latex, uses epsf, extensively revised and updated
31 pages, Latex, uses epsf, extensively revised and updated