Improved measurement of theB 0 andB + meson lifetimes

6533b82ffe1ef96bd1295d57

RESEARCH PRODUCT

Improved measurement of theB 0 andB + meson lifetimes

M. Carpinelli Nikolaos Konstantinidis P. Rensing M.d. Williams M. A. Mcneil Lorenzo Moneta L. Curtis M. Fernandez-bosman M. Pepe-altarelli S. Orteu A. Sadouki Y. S. Gao M. N. Minard J. J. Walsh R. Alemany Giovanna Selvaggi O. Schneider Guenter Wolf H. G. Moser I. Lehraus Markus Frank A. Vayaki M. Corden L. Rolandi J. Boucrot J.r. Hansen B. Rensch Eric Lancon P. Payre L. Bosisio S.r. Armstrong M. Letho M.g. Schmidt Joseph Proriol J. Schwindling Giuseppe Iaselli B. Vallage F. Combley J. Lefrançois M. Wunsch Kevin M. Smith F. Teubert D. Schlatter Andrea Venturi M. Apollonio Peter Elmer Guido Tonelli F. Stephan A. Roussarie Joleen Pater M. Aleppo C. Bozzi P. Colas J. F. Pusztaszeri A. Barres M. Verderi M. Chmeissani A. M. Lutz I. Ferrante J. J. Veillet D. W. Kim G. Bencivenni C. Geweniger S. J. Dorris M. Martinez Ramon Miquel Karl Jakobs C. Markou C. K. Bowdery R. Della Marina M. H. Schune T.c. Greening F. Ranjard J. P. Lees Sau Lan Wu A. S. Thompson P. Van Gemmeren L. Bellantoni Piero Giorgio Verdini A. Cordier Emmerich Kneringer Elizabeth Locci Andrea Sciabà J. M. Rossignol Giuseppe Zito D. M. Binnie Ettore Focardi Ettore Focardi E. E. Kluge P. R. Norton A. M. Greene P. Bourdon Patrick Janot A. Galla F. Dydak Alessandro Giassi B. Bloch-devaux B. Marx Vivek Sharma A. Gregorio A. Moutoussi Y. Saadi G. Bujosa Paul Hanke A.o. Bazarko J. M. Crespo G. Giannini H. Videau H. Videau Alain Falvard J.d. Hansen A. Rosado-schlosser Alan M. Litke Mario Maggi Jean-francois Grivaz R. Beuselinck A. J. Finch G. Bologna J. K. Sedgbeer T. Medcalf W. Männer C. N. Booth C. Goy C. Grupen A. Böhrer Lei Zhang J. Jousset Michael Schmitt C. Vannini Stefan Simion A. Ranieri J.a. Strong Arnaud Lucotte A. Koksal B. Renk X. Huang G. Felici Roberto Dell'orso Pere Mato J.t. Chambers Paolo Laurelli O. Callot I. Efthymiopoulos S. Gonzalez K. Tittel Konrad Kleinknecht F. Bossi G. Bagliesi Val O'shea J.h. Dann E. Simopoulou A. Rougé H. Dietl S.n. Black G. Lutters B.s. Nilsson L. Garrido R. Fantechi R. Hagelberg Q. Ouyang T. R. Edgecock H. G. Sander W. Kozanecki G. Lütjens Imma Riu J. Sommer I. Videau G.p. Murtas T. Fearnley M. Jacquet P. Campana R. Boswell W. Tejessy Donato Creanza G. Bonvicini T. J. Sloan S. Schael David Calvet S. Xue J-c. Montret F. Etienne S. Thorn P. Reeves O.j. Hayes R. Settles P. S. Marrocchesi L. Passalacqua R. Richter L. M. Bryant I. Siotis Dominique Pallin S. Bettarini M. Schmelling J. Rothberg John T Harvey H. Hu I. Abt J. A. Nash R. St. Denis Ll.m. Mir Gerardo Ganis G.a. Blair S. L. Cartwright G. Rizzo G. B. Taylor P. Saraiva T. Oest Z. Y. Feng M. Thulasidas Jane Nachtman Philippe Ghez G. Hansper M. C. Lemaire P. J. Dornan J. Minguet-rodriguez H.y. Kim Christian Zeitnitz J. Reeve I.j. Scott G. Sanguinetti G. Maggi Salvatore Nuzzo P. Tempesta Ian R Tomalin W. Blum Giuseppe Raso J. Grahl F. Rivera G. Batignani H. Wachsmuth J. J. Aubert J. J. Aubert F. Foster A. Pascual P. Henrard P. A. Mcnamara Jiali Lin C. Raine S. Monteil Philippe Odier B. Pietrzyk G. Rudolph A. Bonissent A. Bonissent P. Colrain A. M. Stacey J. L. Harton K. Zachariadou C. Bauer A. Pacheco L. Smolik W. Orejudos G. Hughes M. Zheng R. P. Johnson C. Gotzhein C. Boyer Georg Zobernig H. Seywerd Maria Agnese Ciocci Vitaliano Chiarella I. Nikolic G. Calderini Christopher Brew Nancy Marinelli K. Trabelsi G. Lutz M. G. Green R. Xu Lucia Silvestris F. Sanchez J. Carr Franco Ligabue D. Kuhn A.e. Wright Yuehong Xie F. Le Diberder Francesco Ragusa Francesco Ragusa Roberto Tenchini W. Zhao P. Girtler J.m. Yamartino P. Perrodo Paolo Azzurri Maria Pilar Casado M. Davier D. Buskulic M. De Palma Lorenzo Foà P. Maley Y. B. Pan John Rander D.p.s. Ferguson Marco Cattaneo W. M. Newton C. Benchouk C. Padilla J. Knobloch A. Blondel C. Georgiopoulos L. F. Thompson J. M. Scarr Aristotelis Kyriakis D. E. Jaffe Mario Giorgi I. De Bonis E. Rohne S. Wasserbaech G. Musolino M. Delfino M. Delfino Mi Parsons W. Cameron A. P. Betteridge V. Hepp M. Rumpf S. Werner B. Jost J.h. Von Wimmersperg-toeller Werner Wiedenmann A. Trabelsi G. Mannocchi A. Antonelli G. Graefe B. Michel Alberto Messineo Yang Gao Ziad Ajaltouni C. Guicheney Fabio Cerutti R. W. Clifft Jie Zhang D. R. Botterill J. Steinberger J.g. Lynch R. M. Turnbull Laurent Duflot E. B. Martin A. Wagner P. Comas F. Podlyski S. Emery Cristinel Diaconu Anna Colaleo U. Becker A. W. Halley G. A. Cowan A. Lusiani J. C. Brient Ting-chi Wang G. R. Bonneaud Günther Dissertori F. Thomson A. Putzer Mossadek Talby J. A. Perlas E. Fernandez Ph. Heusse Pablo Rodriguez Perez A. M. Walsh Maria Girone I. C. Park H. Drevermann Jørgen Beck Hansen P. Perret Vitaliano Ciulli Stephen Haywood A. Valassi Hubert Kroha A. Wäänänen B. Gobbo Duccio Abbaneo J. F. Renardy F. Murtas Stephanie Brandt T. Wildish F. Forti D. J. Candlin Roger Forty H.j. Park D. Decamp David Rousseau R W Assmann Paolo Spagnolo A. M. Bencheikh I. G. Knowles J. P. Schuller Fabrizio Palla Hasko Stenzel G. Parrini J. C. Thompson A. Minten G. Crawford P. H. Hansen V. Büscher F. Ruggieri G. Capon A. Juste Gunter Quast Xin Wu D. Casper P. Coyle G. Gelao M. I. Williams

subject

Physics Systematic error Particle physics Time projection chamber Physics and Astronomy (miscellaneous)Meson Nuclear Theory High Energy Physics::Phenomenology Hadron Measure (mathematics)ALEPH Experiment Nuclear physics Decay length High Energy Physics::Experiment Nuclear Experiment ALEPH experiment Lepton

description

The lifetimes of the B 0 and B + mesons have been measured with the Aleph detector at LEP, using approximately 3 million hadronic Z decays collected in the period 1991 1994. In the first of three methods, semileptonic decays of B 0 and B + mesons were partially reconstructed by identifying events containing a lepton with an associated D*- orbar D^0 meson. The second method used fully reconstructed B 0 and B + mesons. The third method, used to measure the B 0 lifetime, employed a partial reconstruction technique to identify B 0→ D*- π + X decays. The combined results are begin{gathered} tau _0 = 1.55 ± 0.06 ± 0.03 ps, \ tau _ + = 1.58 ± 0.09 ± 0.03 ps, \ tfrac{{tau _ + }}{{tau _0 }} = 1.03 ± 0.08 ± 0.02.

year	journal	country	edition	language
1996-03-01

10.1007/s002880050145 http://hdl.handle.net/11589/3088