Search for Chargino-Neutralino Pair Production at CDF

TL;DR

This paper reports a search for chargino-neutralino pair production at the Tevatron, combining multiple multi-lepton final states to set upper limits on production cross sections based on collected data.

Contribution

It presents the first combined analysis of multi-lepton channels for chargino-neutralino production at CDF, setting new upper limits on cross sections.

Findings

No significant excess observed over background.

Upper limits on cross section times branching ratio established.

Constraints placed on supersymmetric models.

Abstract

We present the results of a search for associated production of the lightest chargino and next-to-lightest neutralino using 1 fb$^{-1}$ of $\sqrt s$ = 1.96 TeV p$\rm \bar p$ data collected with the CDF detector at the Tevatron. We combine the results of several multi-lepton final states to set upper limits on the cross section times branching ratio for chargino-neutralino production as a function of the chargino mass.