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Inclusive search for anomalous production of high-p(T) like-sign lepton pairs in p(p)over-bar collisions at root s=1.8 TeV

Acosta, D; Affolder, T; Albrow, MG; Ambrose, D; Amidei, D; Anikeev, K; Antos, J; ... CDF Collaboration, The; + view all (2004) Inclusive search for anomalous production of high-p(T) like-sign lepton pairs in p(p)over-bar collisions at root s=1.8 TeV. Physical Review Letters , 93 (6) , Article 061802. 10.1103/PhysRevLett.93.061802. Green open access

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Abstract

We report on a search for anomalous production of events with at least two charged, isolated, like-sign leptons, each with p(T)>11 GeV/c using a 107 pb(-1) sample of 1.8 TeV p (p) over bar collisions collected by the CDF detector. We define a signal region containing low background from standard model processes. To avoid bias, we fix the final cuts before examining the event yield in the signal region using control regions to test the Monte Carlo predictions. We observe no events in the signal region, consistent with an expectation of 0.63(-0.07)(+0.84) events. We present 95% confidence level limits on new physics processes in both a signature-based context as well as within a representative minimal supergravity (tanbeta=3) model.

Type: Article
Title: Inclusive search for anomalous production of high-p(T) like-sign lepton pairs in p(p)over-bar collisions at root s=1.8 TeV
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.93.061802
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.93.061802
Language: English
Additional information: © 2004 The American Physical Society
Keywords: FERMILAB TEVATRON COLLIDER, CHARGINO-NEUTRALINO PRODUCTION, MAJORANA NEUTRINOS, SUPERSYMMETRY, SIGNATURES, DILEPTONS, SQUARKS, GLUINOS, PHYSICS, BOSON
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/131915
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