We report on a search for supersymmetric squark and gluino particles in a data sample of 19 ph(-1) of <p(p)over bar> collisions at root s = 1.8 TeV recorded by the Collider Detector at Fermilab. We searched for events containing jets plus appreciable missing transverse energy (E-T). This signature is indicative of pair production and subsequent decay of squarks and/or gluinos. After all cuts, there are 18 events with E-T > 60 GeV and three jets, and 6 events with E-T > 60 GeV and four jets. These numbers of events are consistent with estimates of standard model processes plus detector-induced background sources. The analysis yields lower limits on gluino and squark masses, based on the predictions from the mnimal supersymmetric extension of the standard model. At the 95% confidence level, we find gluino and squark mass limits up to 216 GeV/c(2), assuming equal gluino and squark masses, and gluino mass limits up to 173 GeV/c(2), independent of squark mass. RI Vucinic, Dejan/C-2406-2008; Peters, Michael/B-4973-2009; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

Search for gluinos and squarks at the Fermilab tevatron collider

PIACENTINO, Giovanni Maria;
1997

Abstract

We report on a search for supersymmetric squark and gluino particles in a data sample of 19 ph(-1) of collisions at root s = 1.8 TeV recorded by the Collider Detector at Fermilab. We searched for events containing jets plus appreciable missing transverse energy (E-T). This signature is indicative of pair production and subsequent decay of squarks and/or gluinos. After all cuts, there are 18 events with E-T > 60 GeV and three jets, and 6 events with E-T > 60 GeV and four jets. These numbers of events are consistent with estimates of standard model processes plus detector-induced background sources. The analysis yields lower limits on gluino and squark masses, based on the predictions from the mnimal supersymmetric extension of the standard model. At the 95% confidence level, we find gluino and squark mass limits up to 216 GeV/c(2), assuming equal gluino and squark masses, and gluino mass limits up to 173 GeV/c(2), independent of squark mass. RI Vucinic, Dejan/C-2406-2008; Peters, Michael/B-4973-2009; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11695/5855
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