Inclusive Search for Squarks and Gluinos Production and Search for Sbottom from Gluino Decay at CDF

TL;DR

This paper reports on a search for supersymmetric particles, specifically squarks, gluinos, and sbottoms, using proton-antiproton collision data from the CDF detector, setting new mass limits within the mSUGRA framework.

Contribution

It presents the first combined search for squarks, gluinos, and sbottoms at Tevatron energies, providing new mass limits and exploring sbottom production from gluino decays.

Findings

No significant excess over Standard Model predictions.

Limits set on gluino and squark masses.

Constraints on sbottom production from gluino decay.

Abstract

We present preliminary results on a search for squarks and gluinos in proton-antiproton collisions with a center-of-mass energy of 1.96 TeV and based on about 2.0 fb-1 of data collected by the CDF detector in the Tevatron Run II. Events with multiple jets of hadrons and large missing transverse energy in the final state are studied within the framework of minimal supergravity (mSUGRA) and assuming R-parity conservation. The results are compared to Standard Model predictions and limits on gluino and squark masses are extracted. A specific search for the supersymmetric partner of the bottom quark produced from gluino decays is carried out using a sample of events with missing transverse energy and two or more jets, at least one of them b-tagged. Good agreement is found between data and Standard Model predictions, and limits on gluino and sbottom masses are extracted.