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dc.contributor.authorCDF Collaboration-
dc.contributor.authorCabrera, Susana-
dc.contributor.authorCuenca Almenar, Cristóbal-
dc.contributor.authorÁlvarez González, B.-
dc.contributor.authorCasal, Bruno-
dc.contributor.authorCuevas, Javier-
dc.contributor.authorGómez, G.-
dc.contributor.authorRodrigo, Teresa-
dc.contributor.authorRuiz Jimeno, Alberto-
dc.contributor.authorScodellaro, Luca-
dc.contributor.authorVila, Iván-
dc.contributor.authorVilar, Rocío-
dc.contributor.authorAaltonen, T.-
dc.date.accessioned2010-03-09T10:38:54Z-
dc.date.available2010-03-09T10:38:54Z-
dc.date.issued2009-01-30-
dc.identifier.citationPhysical Review Letters 102 (4): 042001(2009)en_US
dc.identifier.issn0031-9007-
dc.identifier.urihttp://hdl.handle.net/10261/22113-
dc.description.abstractWe present the first direct experimental bound on the total decay width of the top quark, Gamma(t), using 955 pb(-1) of the Tevatron's p (p) over bar collisions recorded by the Collider Detector at Fermilab. We identify 253 top-antitop pair candidate events. The distribution of reconstructed top quark mass from these events is fitted to templates representing different values of the top quark width. Using a confidence interval based on likelihood-ratio ordering, we extract an upper limit at 95% C.L. of Gamma(t) < 13.1 GeV for an assumed top quark mass of 175 GeV/c(2).en_US
dc.description.sponsorshipWe thank Torbjörn Sjöstrand, Stephen Mrenna, Peter Skands, Alessandro Ballestrero, and Ezio Maina for discussions related to the Monte Carlo modeling of the top quark lineshape. We thank the Fermilab staff and the technical staffs of the participating institutions for their vital contributions. This work was supported by the U.S. 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 Science and Technology Facilities 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; the Slovak R&D Agency; and the Academy of Finland.en_US
dc.format.extent211359 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.rightsopenAccessen_US
dc.titleDirect Bound on the Total Decay Width of the Top Quark in p(p)over-bar Collisions at root s=1.96 TeVen_US
dc.typeArtículoen_US
dc.identifier.doi10.1103/PhysRevLett.102.042001-
dc.description.peerreviewedPeer revieweden_US
dc.relation.publisherversionhttp://dx.doi.org/ 10.1103/PhysRevLett.102.042001en_US
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