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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/46053
Title: First Search for Multijet Resonances in √s=1.96  TeV pp̅ Collisions
Authors: Aaltonen, T.; Álvarez González, B.; Casal, Bruno; Cuevas, Javier; Gómez, G.; Palencia, Enrique; Rodrigo, Teresa; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila, Iván; Vilar, Rocío; Vizán, J.
Issue Date: 2011
Publisher: American Physical Society
Citation: Physical Review Letters 107(4): 042001 (2011)
Abstract: We present the first model independent search for three-jet hadronic resonances within multijet events in √s=1.96  TeV pp̅ collisions at the Fermilab Tevatron using the CDF II detector. Pair production of supersymmetric gluinos and squarks with hadronic R-parity violating decays is employed as an example of a new physics benchmark for this signature. Selection criteria based on the kinematic properties of an ensemble of jet combinations within each event help to extract signal from copious QCD background. No significant excess outside the top quark mass window is observed in data with an integrated luminosity of 3.2  fb-1. We place 95% confidence level limits on the production cross section σ(pp̅ →XX′)×BR(g˜g˜→3  jet+3  jet) where X, X′=g˜, q˜, or q̅ ˜, with q˜, q̅ ˜→g˜+jet, as a function of gluino mass, in the range of 77  GeV/c2 to 240  GeV/c2.
Description: 7 páginas, 3 figuras.-- PACS numbers: 13.85.-t, 11.30.Pb.-- CDF Collaboration: et al.
Publisher version (URL): http://dx.doi.org/10.1103/PhysRevLett.107.042001
URI: http://hdl.handle.net/10261/46053
DOI: 10.1103/PhysRevLett.107.042001
ISSN: 0031-9007
E-ISSN: 1079-7114
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