A precise measurement of the average b hadron lifetime

D Buskulic,P Payre,I Videau,S.R Armstrong,A Minten,F Bossi,F Saadi,P Coyle,S Monteil,M Schmelling,A Ranieri,O Schneider,C Benchouk,L Bosisio,U Stierlin,R Settles,F Ariztizabal,P Van Gemmeren,A Galla,J Minguet-Rodriguez,G Bologna,G Musolino,S Werner,W Witzeling,G Hughes,G Bonvicini,P Henrard,F Combley,F Etienne,A Farilla,I Ferrante,J Grahl,F Dydak,K Tittel,S Bettarini,P Perret,J Raab,P Comas,O Callot,P Palazzi,G Bujosa,J Boucrot,A Antonelli,A Lusiani,P Maley,J Sommer,H Wachsmuth,H Drevermann,A Gregorio,A Roussarie,F Podlyski,A Böhrer,P Campana,G Felici,G Calderini,G Batignani,G Rudolph,P Tempesta,M Verderi,G Bencivenni,P Girtler,F Teubert,B.S Nilsson,R Fantechi,C Markou,S Natali,W Kozanecki,C Georgiopoulos,T Fearnley,Q Ouyang,V Gaitan,A Vayaki,P Reeves,M Bardadin-Otwinowska,G Giannini,G Rizzo,J Schwindling,M Jacquet,C Gotzhein,R Alemany,T Medcalf,Ll Garrido,C Vannini,G Gelao,M Carpinelli,J Lefrançois,L Passalacqua,C Guicheney,J Steinberger,J.G Lynch,C Bozzi,W Blum,B Rensch,P Colrain,H Videau,P Odier,A Valassi,B Pietrzyk,A Blondel,G Sanguinetti,U Becker,M De Palma,S Thorn,R Hagelberg,S Orteu,D Schlatter,M Wunsch,F Thomson,A Putzer,M Rumpf,G.A Blair,F Murtas,A Rosado-Schlosser,M Letho,B Marx,I Abt,S Emery,I De Bonis,F Ruggieri,T Oest,J Rothberg,J Jousset,E Simopoulou,F Rivera,D Nicod,A Rougé,F Foster,G Parrini,C Geweniger,B Jost,I Siotis,B Vallage,G Crawford,C Zeitnitz,W Cameron,M Davier,C Bauer,A Cordier,B Michel,M Corden,A Pacheco,A Moutoussi,M Pepe-Altarelli,M Chmeissani,Y Saadi,G Mannocchi,H Duarte,I Lehraus,B Renk,O.J Hayes,W Männer,C Rankin,I Ten Have,P Colas,G Capon,F Courault,J Wotschack,A Koksal,F Forti,F Le Diberder,L Bellantoni,D Si Mohand,G Lutters,F Ranjard,S Schael,R Della Marina,R Beuselinck,A Trabelsi,W Orejudos,H Dietl,M Thulasidas,R Xu,K Zachariadou,B Bloch-Devaux,W Tejessy,P Perrodo,G Triggiani,V Hepp,S Xue,G Lütjens,M.-N Minard,H Seywerd,J Knobloch,M Delfino,C Boyer,M Frank,D Rousseau,F Romanò ,J.-F Grivaz,H Stenzel,M I Parsons ,M C Lemaire ,A S Thompson ,J Proriol,P Hanke,L Smolík ,Z Ajaltouni,T Wang,S González,W T Morton ,M H Schune ,G Zobernig,W Zhao,K M Smith ,G Zito,C N Booth ,A Barrès ,P R Norton ,M Martı́nez ,C Goy,S J Haywood ,M G Smith ,A Venturi,P Janot,J F Pusztaszeri ,B Gobbo,A Kyriakis,Philippe Ghez ,A M Greene ,D Abbaneo,A M Lutz ,J C Montret ,G Martin ,G Dissertori,A Bonissent,A J Finch ,D Kühn ,R Richter,D Casper,Peter Hansen ,I Efthymiopoulos,D M Binnie ,E Focardi,D.W Kim,T J Brodbeck ,P G Verdini ,I Scott ,G R Bonneaud ,M Apollonio,I R Tomalin ,L Silvestris,X Wu,G Tonelli,G Bagliesi,J K Sedgbeer ,L Moneta,E P Whelan ,M Zheng,F Cerutti,M Talby,J P Lees ,M Edwards,J B Hansen ,E E Kluge ,Z Feng,G Selvaggi,J Zhang,A M Stacey ,L M Bryant ,V Ciulli,D Colling ,A Messineo,X T Huang ,A Rosowsky,M Fernández-Bosman ,A P Betteridge ,T Sloan,J Carr,I.C Park,Y Pan ,S L Cartwright ,R Forty ,S L Wu ,D Pallin,R Wanke,S Wasserbaech,J A Perlas ,J A Strong ,H.J Park,J Harvey,A Lucotte,A J Beddall ,K Jakobs,P Mató ,P.A Mcnamara,M A Ciocci ,K Kleinknecht,L Duflot,P S Marrocchesi ,A Colaleo,G Cowan,L M Mir ,G.n Taylor ,G Ganis,P Rensing,J R Hansen ,A Falvard,M Schmitt,A Sciabà,S Nuzzo,Y S Gao ,G Raso,Y Xie,H Kroha,R Miquel,O Braun,F J Munoz Sanchez ,G Iaselli,Á Pascual ,Y Gao,W M Newton ,P Pérez ,Siegmund Brandt ,J R Pater ,F Ligabue,J M Yamartino ,G Quast,H G Sander ,G Wolf,E Locci,A.W Halley,E B Martin ,J M Nachtman ,M A Giorgi ,D E Jaffe ,P Heusse ,R.g Jacobsen ,N Konstantinidis,W Wiedenmann,P Elmer,I G Knowles ,J M Rossignol ,Pedro Saraiva ,Michael G Schmidt ,S J Dorris ,R Tanaka,V Chiarella,M Maggi,D Calvet,H.Y Kim,C Padilla Aranda ,L Foà,A Giassi,J.C Thompson,A M Litke ,E Kneringer,R Edgecock ,D Botterill ,P Spagnolo,L Zhang,J.M Crespo,R St Denis ,I Dawson,J D Hansen ,F Stephan,G Graefe,M.G Green,J C Brient ,C Raine,J D Turk ,V Bertín ,F Palla,J F Renardy ,N Marinelli,C Grupen,Rod Boswell ,C K Bowdery ,D Décamp ,J.J Aubert,A M Bencheikh ,D J Candlin ,D Creanza,J Lin,L.F Thompson,M.A Mcneil,D Johnson ,R P Johnson ,J Walsh,H M Hu ,J J Veillet ,V Sharma,Р Тенчини ,M.I Williams,A M Walsh ,R Assmann,J Rander,R Dell’orso ,M Cattaneo,V O’shea ,R W Clifft ,S Simion,J M Scarr ,P Laurelli,D.P.S Ferguson,E Lançon,J Nash,P Gay,D Brown,E Fernández ,P Bourdon,M Girone,T Wildish,J L Harton ,Irena Nikolić ,G Mäggi ,J P Schuller ,P J Dornan ,R.M Turnbull,F Ragusa,G Lütz ,H G Moser ,P Azzurri,G Rolandi ,C Diaconu,Eric O Feigl

doi:10.1016/0370-2693(95)01586-8

A precise measurement of the average b hadron lifetime

D Buskulic, P Payre + Show 413 more

Open Access

https://doi.org/10.1016/0370-2693(95)01586-8

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#Hadron Lifetime #Three-dimensional Parameter + Show 7 more

Abstract
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Abstract

An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991–1993 runs of ALEPH, with the silicon vertex detector fully operational. This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 ± 0.013 ± 0.022 ps.

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