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Can the Aleph Four-Jet Excess be Explained in a Supersymmetric Model with R-Parity Violation?

Dilip Kumar Ghosh·Rohini M. Godbole·Sreerup Raychaudhuri
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Abstract

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.

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Dilip Kumar Ghosh, Rohini M. Godbole, Sreerup Raychaudhuri. 1996-09-10. Can the Aleph Four-Jet Excess be Explained in a Supersymmetric Model with R-Parity Violation?. https://arxiv.org/abs/hep-ph/9605460

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