Search for R-Parity violating Supersymmetry with the D0 Detector

TL;DR

This paper reports on a search for R-parity violating supersymmetry at the Fermilab Tevatron, analyzing multi-lepton and di-muon final states, finding no excess over the Standard Model, and setting new limits on RPV SUSY parameters.

Contribution

First comprehensive search for RPV supersymmetry with the D0 detector, extending previous bounds using 0.38 fb-1 of data from Tevatron.

Findings

No significant excess observed over Standard Model predictions.

Set new, more stringent limits on RPV SUSY couplings.

Analyzed multiple final states including multi-lepton and di-muon channels.

Abstract

Searches for R-parity violating supersymmetry with the D0 detector at the Fermilab Tevatron ppbar-collider are presented. In the case of non-zero LLE couplings lambda_ijk>=0.01, multi-lepton final states, and for a small coupling lambda_122<<0.01 di-muon final states are studied. The case of non-zero LQD coupling lambda'_211 leads to final states with two muons and jets. A total integrated luminosity of 0.38 fb-1 collected between April 2002 and August 2004 is utilized. The observed numbers of events are in agreement with the Standard Model expectation, and limits on RPV supersymmetry are derived, extending significantly previous bounds.