Search for R-parity Violation in Multilepton Final States in p-barp Collisions at sqrt{s}=1.8 TeV

TL;DR

This paper reports a search for R-parity violating gaugino pair production in multilepton final states at the Fermilab Tevatron, setting new limits on mSUGRA parameters with leptonic couplings.

Contribution

It reinterprets existing gaugino pair production searches within the R-parity violating mSUGRA framework, excluding significant parameter space.

Findings

Excluded large mSUGRA parameter regions for lambda_{121}, lambda_{122} > 10^{-4}

Used 95 pb^{-1} of p-barp collision data at 1.8 TeV

Set constraints on R-parity violating couplings in supersymmetry

Abstract

The result of a search for gaugino pair production with a trilepton signature is reinterpreted in the framework of minimal supergravity (mSUGRA) with R-parity violation via leptonic lambda Yukawa couplings. The search used 95 pb^{-1} of p-barp collisions at sqrt{s}=1.8 TeV recorded by the D0 detector at the Fermilab Tevatron. A large domain of the mSUGRA parameter space is excluded for lambda_{121}, lambda_{122} > 10^{-4}.