We have used a kinematic technique to distinguish top quark pair production from background in p ($) over bar p collisions at root s=1.8 TeV, applied to 67 pb(-1) of data. We define a sample of W+ greater than or equal to 3 jet events in which the jets are produced at large angles relative to the incident beams. In this sample, we find an excess of events with large jet transverse energies relative to expectations from background. The excess is consistent with top quark production; a large fraction of events in this kinematic region contains b jets. We interpret these results as evidence that most of the selected events are from t ($) over bar t decay. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012

IDENTIFICATION OF TOP QUARKS USING KINEMATIC VARIABLES

PIACENTINO, Giovanni Maria;
1995

Abstract

We have used a kinematic technique to distinguish top quark pair production from background in p ($) over bar p collisions at root s=1.8 TeV, applied to 67 pb(-1) of data. We define a sample of W+ greater than or equal to 3 jet events in which the jets are produced at large angles relative to the incident beams. In this sample, we find an excess of events with large jet transverse energies relative to expectations from background. The excess is consistent with top quark production; a large fraction of events in this kinematic region contains b jets. We interpret these results as evidence that most of the selected events are from t ($) over bar t decay. RI Vucinic, Dejan/C-2406-2008; 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/11695/6600
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