Phys. Rev. Lett.
72,
3456–3460
(1994)
Measurement of the B+ and B0 meson lifetimes
F. Abe et al.
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F. Abe, M. Albrow, D. Amidei, C. Anway-Wiese, G. Apollinari, H. Areti, P. Auchincloss, F. Azfar, P. Azzi, N. Bacchetta, W. Badgett, M. W. Bailey, J. Bao, P. de Barbaro, A. Barbaro-Galtieri, V. E. Barnes, B. A. Barnett, P. Bartalini, G. Bauer, T. Baumann, F. Bedeschi, S. Behrends, S. Belforte, G. Bellettini, J. Bellinger, D. Benjamin, J. Benlloch, D. Benton, A. Beretvas, J. P. Berge, S. Bertolucci, A. Bhatti, K. Biery, M. Binkley, F. Bird, D. Bisello, R. E. Blair, C. Blocker, A. Bodek, V. Bolognesi, D. Bortoletto, C. Boswell, T. Boulos, G. Brandenburg, E. Buckley-Geer, H. S. Budd, K. Burkett, G. Busetto, A. Byon-Wagner, K. L. Byrum, C. Campagnari, M. Campbell, A. Caner, W. Carithers, D. Carlsmith, A. Castro, Y. Cen, F. Cervelli, J. Chapman, G. Chiarelli, T. Chikamatsu, S. Cihangir, A. G. Clark, M. Cobal, M. Contreras, J. Cooper, M. Cordelli, D. P. Coupal, D. Crane, J. D. Cunningham, T. Daniels, F. DeJongh, S. Dell’Agnello, M. Dell’Orso, L. Demortier, B. Denby, M. Deninno, P. F. Derwent, T. Devlin, M. Dickson, S. Donati, J. P. Done, R. B. Drucker, A. Dunn, K. Einsweiler, J. E. Elias, R. Ely, E. Engels, Jr., S. Eno, D. Errede, S. Errede, A. Etchegoyen, Q. Fan, B. Farhat, I. Fiori, B. Flaugher, G. W. Foster, M. Franklin, M. Frautschi, J. Freeman, J. Friedman, H. Frisch, A. Fry, T. A. Fuess, Y. Fukui, S. Funaki, G. Gagliardi, M. Gallinaro, A. F. Garfinkel, S. Geer, D. W. Gerdes, P. Giannetti, N. Giokaris, P. Giromini, L. Gladney, D. Glenzinski, M. Gold, J. Gonzalez, A. Gordon, A. T. Goshaw, K. Goulianos, H. Grassmann, A. Grewal, G. Grieco, L. Groer, C. Grosso-Pilcher, C. Haber, S. R. Hahn, R. Hamilton, R. Handler, R. M. Hans, K. Hara, B. Harral, R. M. Harris, S. A. Hauger, J. Hauser, C. Hawk, J. Heinrich, D. Hennessy, R. Hollebeek, L. Holloway, A. Hölscher, S. Hong, G. Houk, P. Hu, B. T. Huffman, R. Hughes, P. Hurst, J. Huston, J. Huth, J. Hylen, M. Incagli, J. Incandela, H. Iso, H. Jensen, C. P. Jessop, U. Joshi, R. W. Kadel, E. Kajfasz, T. Kamon, T. Kaneko, D. A. Kardelis, H. Kasha, Y. Kato, L. Keeble, R. D. Kennedy, R. Kephart, P. Kesten, D. Kestenbaum, R. M. Keup, H. Keutelian, F. Keyvan, D. H. Kim, H. S. Kim, S. B. Kim, S. H. Kim, Y. K. Kim, L. Kirsch, P. Koehn, K. Kondo, J. Konigsberg, S. Kopp, K. Kordas, W. Koska, E. Kovacs, M. Krasberg, J. Kroll, M. Kruse, S. E. Kuhlmann, E. Kuns, A. T. Laasanen, S. Lammel, J. I. Lamoureux, T. LeCompte, S. Leone, J. D. Lewis, P. Limon, M. Lindgren, T. M. Liss, N. Lockyer, O. Long, M. Loreti, E. H. Low, D. Lucchesi, C. B. Luchini, P. Lukens, P. Maas, K. Maeshima, A. Maghakian, M. Mangano, J. Mansour, M. Mariotti, J. P. Marriner, A. Martin, J. A. J. Matthews, R. Mattingly, P. McIntyre, P. Melese, A. Menzione, E. Meschi, G. Michail, S. Mikamo, M. Miller, T. Mimashi, S. Miscetti, M. Mishina, H. Mitsushio, S. Miyashita, Y. Morita, S. Moulding, J. Mueller, A. Mukherjee, T. Muller, P. Musgrave, L. F. Nakae, I. Nakano, C. Nelson, D. Neuberger, C. Newman-Holmes, L. Nodulman, S. Ogawa, K. E. Ohl, R. Oishi, T. Okusawa, C. Pagliarone, R. Paoletti, V. Papadimitriou, S. Park, J. Patrick, G. Pauletta, L. Pescara, M. D. Peters, T. J. Phillips, G. Piacentino, M. Pillai, R. Plunkett, L. Pondrom, N. Produit, J. Proudfoot, F. Ptohos, G. Punzi, K. Ragan, F. Rimondi, L. Ristori, M. Roach-Bellino, W. J. Robertson, T. Rodrigo, J. Romano, L. Rosenson, W. K. Sakumoto, D. Saltzberg, A. Sansoni, V. Scarpine, A. Schindler, P. Schlabach, E. E. Schmidt, M. P. Schmidt, O. Schneider, G. F. Sciacca, A. Scribano, S. Segler, S. Seidel, Y. Seiya, G. Sganos, M. Shapiro, N. M. Shaw, Q. Shen, P. F. Shepard, M. Shimojima, M. Shochet, J. Siegrist, A. Sill, P. Sinervo, P. Singh, J. Skarha, K. Sliwa, D. A. Smith, F. D. Snider, L. Song, T. Song, J. Spalding, P. Sphicas, A. Spies, L. Stanco, J. Steele, A. Stefanini, K. Strahl, J. Strait, G. Sullivan, K. Sumorok, R. L. Swartz, Jr., T. Takahashi, K. Takikawa, F. Tartarelli, Y. Teramoto, S. Tether, D. Theriot, J. Thomas, R. Thun, M. Timko, P. Tipton, A. Titov, S. Tkaczyk, A. Tollestrup, J. Tonnison, J. F. de Troconiz, J. Tseng, M. Turcotte, N. Turini, N. Uemura, F. Ukegawa, G. Unal, S. Vejcik, III, R. Vidal, M. Vondracek, R. G. Wagner, R. L. Wagner, N. Wainer, R. C. Walker, J. Wang, Q. F. Wang, A. Warburton, G. Watts, T. Watts, R. Webb, C. Wendt, H. Wenzel, W. C. Wester, III, T. Westhusing, A. B. Wicklund, E. Wicklund, R. Wilkinson, H. H. Williams, P. Wilson, B. L. Winer, J. Wolinski, D. Y. Wu, X. Wu, J. Wyss, A. Yagil, W. Yao, K. Yasuoka, Y. Ye, G. P. Yeh, M. Yin, J. Yoh, T. Yoshida, D. Yovanovitch, I. Yu, J. C. Yun, A. Zanetti, F. Zetti, S. Zhang, W. Zhang, and S. Zucchelli
Argonne National Laboratory, Argonne, Illinois 60439
Brandeis University, Waltham, Massachusetts 02254
Istituto Nazionale di Fisica Nucleare, University of Bologna, I-40126 Bologna, Italy
University of California at Los Angeles, Los Angeles, California 90024
University of Chicago, Chicago, Illinois 60637
Duke University, Durham, North Carolina 27708
Fermi National Accelerator Laboratory, Batavia, Illinois 60510
Laboratori Nazionali di Frascati, Istituto Nazionale di Fisica Nucleare, I-00044 Frascati, Italy
Harvard University, Cambridge, Massachusetts 02138
University of Illinois, Urbana, Illinois 61801
Institute of Particle Physics, Mcgill University, Quebec, Montreal, Canada H3A 2T8,
University of Toronto, Toronto, Ontario, Canada M5S 1A7
The Johns Hopkins University, Baltimore, Maryland 21218
National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
Lawrence Berkeley Laboratory, Berkeley, California 94720
Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
University of Michigan, Ann Arbor, Michigan 48109
Michigan State University, East Lansing, Michigan 48824
University of New Mexico, Albuquerque, New Mexico 87131
Osaka City University, Osaka 588, Japan
Universita di Padova, Instituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy
University of Pennsylvania, Philadelphia, Pennsylvania 19104
University of Pittsburgh, Pittsburgh, Pennsylvania 15260
Istituto Nazionale di Fisica Nucleare, University and Scuola Normale Superiore of Pisa, I-56100 Pisa, Italy
Purdue University, West Lafayette, Indiana 47907
University of Rochester, Rochester, New York 14627
Rockefeller University, New York, New York 10021
Rutgers University, Piscataway, New Jersey 08854
Superconducting Super Collider Laboratory, Dallas, Texas 75237
Texas A&M University, College Station, Texas 77843
University of Tsukuba, Tsukuba, Ibaraki 305, Japan
Tufts University, Medford, Massachusetts 02155
University of Wisconsin–Madison, Madison, Wisconsin 53706
Yale University, New Haven, Connecticut 06511
Received 25 January 1994; published in the issue dated 30 May 1994
The lifetimes of the B+ and B0 mesons have been measured using fully reconstructed decays. In a sample of ∼49 600J/ψ→μ+μ- decays recorded with the Collider Detector at Fermilab, 148±16 B+ and 121±16B0 mesons have been reconstructed using the silicon vertex detector. Unbinned likelihood fits to the proper lifetime distributions of these B mesons give τ+=1.61±0.16 (stat)±0.05 (syst) ps, τ0=1.57±0.18 (stat) ±0.08 (syst) ps, and τ+/τ0=1.02±0.16 (stat) ±0.05 (syst).
© 1994 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.72.3456
DOI:
10.1103/PhysRevLett.72.3456
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