Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/22113
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Título : Direct Bound on the Total Decay Width of the Top Quark in p(p)over-bar Collisions at root s=1.96 TeV
Autor : CDF Collaboration, Cabrera, Susana, Cuenca Almenar, Cristóbal, Álvarez González, B., Casal, Bruno, Cuevas, Javier, Gómez, G., Rodrigo, Teresa, Ruiz, Alberto, Scodellaro, Luca, Vila, Iván, Vilar, Rocío, Aaltonen, T.
Fecha de publicación : 30-Jan-2009
Editor: American Physical Society
Resumen: We 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).
Versión del editor: http://dx.doi.org/ 10.1103/PhysRevLett.102.042001
URI : http://hdl.handle.net/10261/22113
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.102.042001
Citación : Physical Review Letters 102 (4): 042001(2009)
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