Search for Pair Production of Scalar Top Quarks in R-Parity Violating Decay Modes in pp̅ Collisions at √s=1.8 TeV

Authors

• Darin Acosta, University of FloridaFollow
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Collider Detector at Fermilab Collaboration

Document Type

Article

Date of this Version

2-6-2004

Comments

Published by American Physical Society. Phys. Rev. Lett. 92, 051803 (2004). http://prl.aps.org. Copyright © 2004 American Physical Society. Permission to use.

Abstract

We present the results of a search for pair production of scalar top quarks (t̅₁) in an R-Parity violating supersymmetry scenario in 106 pb^-1 of pp̅ collisions at √s=1.8 TeV collected by the Collider Detector at Fermilab. In this mode each t̅₁ decays into a τ lepton and a b quark. We search for events with two τ's, one decaying leptonically (e or µ) and one decaying hadronically, and two jets. No candidate events pass our final selection criteria. We set a 95% confidence level lower limit on the t̅₁ mass at 122 GeV/c² for Br(t̅₁→τb)=1.