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

Ghosh, Dilip Kumar and Godbole, Rohini M and Raychaudhuri, Sreerup (1996) Can the Aleph Four-Jet Excess be Explained in a Supersymmetric Model with R-Parity Violation? [Preprint]

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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 ($\lambda^{\prime\prime}$) 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.

Item Type:	Preprint
Additional Information:	Z.Phys. C75 (1997) 357-365
Department/Centre:	Division of Physical & Mathematical Sciences > Centre for Theoretical Studies (Ceased to exist at the end of 2003)
Date Deposited:	11 Jan 2007
Last Modified:	19 Sep 2010 04:13
URI:	http://eprints.iisc.ac.in/id/eprint/892

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