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Search for chargino-neutralino production in p(p)over-bar collisions at sqrt{s}=1.96 TeV (2007)

Abstract
7 pages, 2 figures.-- PACS nrs.: 14.80.Ly, 12.60.Jv, 13.85.Rm.-- ISI Article Identifier: 000250810500020.-- ArXiv pre-print available at: http://arxiv.org/abs/0707.2362. We present a search for associated production of the chargino and neutralino supersymmetric particles using up to 1.1 fb(-1) of integrated luminosity collected by the CDF II experiment at the Tevatron p(p)over-bar collider at sqrt{s}=1.96 TeV. We analyze events with a large transverse momentum imbalance and either three charged leptons or two charged leptons of the same electric charge. The numbers of observed events are consistent with standard model expectations. Upper limits on the production cross section are derived in different theoretical models.. This work was supported by the US Department of Energy and National Science Foundation; the Italian Istituto Nazionale di Fisica Nucleare; the Ministry of Education, Culture, Sports, Science, and Technology of Japan; the Natural Sciences and Engineering Research Council of Canada; the National Science Council of the Republic of China; the Swiss National Science Foundation; the A. P. Sloan Foundation; the Bundesministerium für Bildung und Forschung, Germany; the Korean Science and Engineering Foundation and the Korean Research Foundation; the Particle Physics and Astronomy Research Council and the Royal Society, UK; the Institut National de Physique Nucleaire et Physique des Particules/CNRS; the Russian Foundation for Basic Research; the Comisión Interministerial de Ciencia y Tecnología, Spain; the European Community’s Human Potential Programme under Contract No. HPRN-CT-2002-00292; and the Academy of Finland.. Peer reviewed

Publication details
Download http://hdl.handle.net/10261/8519
Publisher American Physical Society (APS)
Repository Digital.CSIC (Spain)
Keywords [PACS] Supersymmetric partners of known particles, [PACS] Supersymmetric unified models, [PACS] Limits on hadron-induced production of particles (energy > 10 GeV), Física
Type Artículo
Language English
Relation http://dx.doi.org/10.1103/PhysRevLett.99.191806