Improved determination of the width of the top quark

  • Abazov, V. M.
  • Abbott, B.
  • Acharya, B. S.
  • Adams, M.
  • Adams, T.
  • 외 405명
Citations

WEB OF SCIENCE

50
Citations

SCOPUS

77

초록

We present an improved determination of the total width of the top quark, Gamma(t), using 5.4 fb(-1) of integrated luminosity collected by the D0 Collaboration at the Tevatron p (p) over bar Collider. The total width Gamma(t) is extracted from the partial decay width Gamma(t -> Wb) and the branching fraction B(t -> Wb). Gamma(t -> Wb) is obtained from the t-channel single top-quark production cross section and B(t -> Wb) is measured in t (t) over bar events. For a top mass of 172.5 GeV, the resulting width is Gamma(t) = 2.00(-0.43)(+0.47) GeV. This translates to a top-quark lifetime of tau(t) = (3.29(-0.63)(+0.90)) x 10(-25) s. We also extract an improved direct limit on the Cabibbo-Kobayashi-Maskawa quark-mixing matrix element 0.81 < vertical bar V-tb vertical bar <= 1 at 95% C.L. and a limit of vertical bar V-tb'vertical bar < 0.59 for a high-mass fourth-generation bottom quark assuming unitarity of the fourth-generation quark-mixing matrix.

키워드

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제목
Improved determination of the width of the top quark
저자
Abazov, V. M.Abbott, B.Acharya, B. S.Adams, M.Adams, T.Alexeev, G. D.Alkhazov, G.Alton, A.Alverson, G.Aoki, M.Askew, A.Asman, B.Atkins, S.Atramentov, O.Augsten, K.Avila, C.BackusMayes, J.Badaud, F.Bagby, L.Baldin, B.Bandurin, D. V.Banerjee, S.Barberis, E.Baringer, P.Barreto, J.Bartlett, J. F.Bassler, U.Bazterra, V.Bean, A.Begalli, M.Belanger-Champagne, C.Bellantoni, L.Beri, S. B.Bernardi, G.Bernhard, R.Bertram, I.Besancon, M.Beuselinck, R.Bezzubov, V. A.Bhat, P. C.Bhatia, S.Bhatnagar, V.Blazey, G.Blessing, S.Bloom, K.Boehnlein, A.Boline, D.Boos, E. E.Borissov, G.Bose, T.Brandt, A.Brandt, O.Brock, R.Brooijmans, G.Bross, A.Brown, D.Brown, J.Bu, X. B.Buehler, M.Buescher, V.Bunichev, V.Burdin, S.Burnett, T. H.Buszello, C. P.Calpas, B.Camacho-Perez, E.Carrasco-Lizarraga, M. A.Casey, C. K.Castilla-Valdez, H.Chakrabarti, S.Chakraborty, D.Chan, M.Chandra, A.Chapon, E.Chen, G.Chevalier-Thery, S.Cho, D. K.Cho, S. W.Choi, S.Choudhary, B.Cihangir, S.Claes, D.Clutter, J.Cooke, M.Cooper, W. E.Corcoran, M.Couderc, F.Cousinou, M. -C.Croc, A.Cutts, D.Das, A.Davies, G.de Jong, S. J.De La Cruz-Burelo, E.Deliot, F.Demina, R.Denisov, D.Denisov, S. P.Desai, S.Deterre, C.DeVaughan, K.Diehl, H. T.Diesburg, M.Ding, P. F.Dominguez, A.Dorland, T.Dubey, A.Dudko, L. V.Duggan, D.Duperrin, A.Dutt, S.Dyshkant, A.Eads, M.Edmunds, D.Ellison, J.Elvira, V. D.Enari, Y.Evans, H.Evdokimov, A.Evdokimov, V. N.Facini, G.Ferbel, T.Fiedler, F.Filthaut, F.Fisher, W.Fisk, H. E.Fortner, M.Fox, H.Fuess, S.Garcia-Bellido, A.Garcia-Guerra, G. A.Gavrilov, V.Gay, P.Geng, W.Gerbaudo, D.Gerber, C. E.Gershtein, Y.Ginther, G.Golovanov, G.Goussiou, A.Graf, C. P.Grannis, P. D.Greder, S.Greenlee, H.Greenwood, Z. D.Gregores, E. M.Grenier, G.Gris, Ph.Grivaz, J. -F.Grohsjean, A.Gruenendahl, S.Gruenewald, M. W.Guillemin, T.Gutierrez, G.Gutierrez, P.Haas, A.Hagopian, S.Haley, J.Han, L.Harder, K.Harel, A.Hauptman, J. M.Hays, J.Head, T.Hebbeker, T.Hedin, D.Hegab, H.Heinson, A. P.Heintz, U.Hensel, C.La Cruz, I. Heredia-DeHerner, K.Hesketh, G.Hildreth, M. D.Hirosky, R.Hoang, T.Hobbs, J. D.Hoeneisen, B.Hohlfeld, M.Hubacek, Z.Hynek, V.Iashvili, I.Ilchenko, Y.Illingworth, R.Ito, A. S.Jabeen, S.Jaffre, M.Jamin, D.Jayasinghe, A.Jesik, R.Johns, K.Johnson, M.Jonckheere, A.Jonsson, P.Joshi, J.Jung, A. W.Juste, A.Kaadze, K.Kajfasz, E.Karmanov, D.Kasper, P. A.Katsanos, I.Kehoe, R.Kermiche, S.Khalatyan, N.Khanov, A.Kharchilava, A.Kharzheev, Y. N.Kohli, J. M.Kozelov, A. V.Kraus, J.Kulikov, S.Kumar, A.Kupco, A.Kurca, T.Kuzmin, V. A.Lammers, S.Landsberg, G.Lebrun, P.Lee, H. S.Lee, S. W.Lee, W. M.Lellouch, J.Li, H.Li, L.Li, Q. Z.Lietti, S. M.Lim, J. K.Lincoln, D.Linnemann, J.Lipaev, V. V.Lipton, R.Liu, Y.Lobodenko, A.Lokajicek, M.de Sa, R. LopesLubatti, H. J.Luna-Garcia, R.Lyon, A. L.Maciel, A. K. A.Mackin, D.Madar, R.Magana-Villalba, R.Malik, S.Malyshev, V. L.Maravin, Y.Martinez-Ortega, J.McCarthy, R.McGivern, C. L.Meijer, M. M.Melnitchouk, A.Menezes, D.Mercadante, P. G.Merkin, M.Meyer, A.Meyer, J.Miconi, F.Mondal, N. K.Muanza, G. S.Mulhearn, M.Nagy, E.Naimuddin, M.Narain, M.Nayyar, R.Neal, H. A.Negret, J. P.Neustroev, P.Novaes, S. F.Nunnemann, T.Obrant, G.Orduna, J.Osman, N.Osta, J.Otero y Garzon, G. J.Padilla, M.Pal, A.Parashar, N.Parihar, V.Park, S. K.Partridge, R.Parua, N.Patwa, A.Penning, B.Perfilov, M.Peters, Y.Petridis, K.Petrillo, G.Petroff, P.Piegaia, R.Pleier, M. -A.Podesta-Lerma, P. L. M.Podstavkov, V. M.Polozov, P.Popov, A. V.Prewitt, M.Price, D.Prokopenko, N.Qian, J.Quadt, A.Quinn, B.Rangel, M. S.Ranjan, K.Ratoff, P. N.Razumov, I.Renkel, P.Rijssenbeek, M.Ripp-Baudot, I.Rizatdinova, F.Rominsky, M.Ross, A.Royon, C.Rubinov, P.Ruchti, R.Safronov, G.Sajot, G.Salcido, P.Sanchez-Hernandez, A.Sanders, M. P.Sanghi, B.Santos, A. S.Savage, G.Sawyer, L.Scanlon, T.Schamberger, R. D.Scheglov, Y.Schellman, H.Schliephake, T.Schlobohm, S.Schwanenberger, C.Schwienhorst, R.Sekaric, J.Severini, H.Shabalina, E.Shary, V.Shchukin, A. A.Shivpuri, R. K.Simak, V.Sirotenko, V.Skubic, P.Slattery, P.Smirnov, D.Smith, K. J.Snow, G. R.Snow, J.Snyder, S.Soeldner-Rembold, S.Sonnenschein, L.Soustruznik, K.Stark, J.Stolin, V.Stoyanova, D. A.Strauss, M.Strom, D.Stutte, L.Suter, L.Svoisky, P.Takahashi, M.Tanasijczuk, A.Titov, M.Tokmenin, V. V.Tsai, Y. -T.Tschann-Grimm, K.Tsybychev, D.Tuchming, B.Tully, C.Uvarov, L.Uvarov, S.Uzunyan, S.Van Kooten, R.van Leeuwen, W. M.Varelas, N.Varnes, E. W.Vasilyev, I. A.Verdier, P.Vertogradov, L. S.Verzocchi, M.Vesterinen, M.Vilanova, D.Vokac, P.Wahl, H. D.Wang, M. H. L. S.Warchol, J.Watts, G.Wayne, M.Weber, M.Weichert, J.Welty-Rieger, L.White, A.Wicke, D.Williams, M. R. J.Wilson, G. W.Wobisch, M.Wood, D. R.Wyatt, T. R.Xie, Y.Yamada, R.Yang, W. -C.Yasuda, T.Yatsunenko, Y. A.Ye, W.Ye, Z.Yin, H.Yip, K.Youn, S. W.Zhao, T.Zhou, B.Zhu, J.Zielinski, M.Zieminska, D.Zivkovic, L.
DOI
10.1103/PhysRevD.85.091104
발행일
2012-05-04
유형
Article
저널명
Physical Review D - Particles, Fields, Gravitation and Cosmology
85
9