Search for the Production of Single Sleptons through R-parity Violation in p bar{p} Collisions at sqrt{s}=1.8 TeV

TL;DR

This paper reports the first search for supersymmetric particles produced via R-parity violation in proton-antiproton collisions at 1.8 TeV, focusing on smuons and muon sneutrinos, with results consistent with the standard model.

Contribution

It introduces the first search for single slepton production through R-parity violation at hadronic colliders, providing exclusion limits for specific coupling values.

Findings

No excess of candidate events observed over standard model expectations.

Exclusion contours established in parameter space for different R-parity violating couplings.

Results set new constraints on supersymmetric particle masses and couplings.

Abstract

We report the first search for supersymmetric particles via s-channel production and decay of smuons or muon sneutrinos at hadronic colliders. The data for the two-muon and two-jets final states were collected by the DO experiment, and correspond to an integrated luminosity of 94 +/- 5 pb^{-1}. Assuming that R-parity is violated via the single coupling lambda^{prime}_{211}, the number of candidate events is in agreement with expectation from the standard model. Exclusion contours are given in the (m_0,m_{1/2}) and (m_{tilde{chi}},m_{tilde{nu}}) planes for lambda^{prime}_{211}=0.09, 0.08 and 0.07.