An Improved Measurement Of The B-S(0) Lifetime

R Akers,G Alexander,J Allison,K Ametewee,Kj Anderson,S Arcelli,S Asai,D Axen,G Azuelos,Ah Ball,E Barberio,Rj Barlow,R Bartoldus,Jr Batley,G Beaudoin, A Beck,Ga Beck,C Beeston,T Behnke,Kw Bell,G Bella,S Bentvelsen, P Berlich,S Bethke,O Biebel,Ij Bloodworth,P Bock,Hm Bosch,M Boutemeur,S Braibant, P Brightthomas,Rm Brown,A Buijs,Hj Burckhart,R Burgin,C Burgard,N Capdevielle,P Capiluppi,Rk Carnegie,Aa Carter,Jr Carter,Cy Chang,C Charlesworth,Dg Charlton,Sl Chu,Pel Clarke,Jc Clayton,Sg Clowes,I Cohen,Je Conboy,Oc Cooke,M Cuffiani, S Dado,C Dallapiccola,Gm Dallavalle,C Darling,S Dejong,La Delpozo,H Deng,M Dittmar,Ms Dixit,Ede Silva,Je Duboscq,E Duchovni,G Duckeck,Ip Duerdoth,Uc Dunwoody,Jeg Edwards,Pa Elcombe,Pg Estabrooks,E Etzion,Hg Evans,F Fabbri,B Fabbro, M Fanti,P Fath,M Fierro,M Finckekeeler,Hm Fischer,P Fischer,R Folman,Dg Fong,M Foucher,H Fukui,A Furtjes,P Gagnon,A Gaidot,Jw Gary,J Gascon,Ni Geddes,C Geichgimbel,Sw Gensler,Fx Gentit, T Geralis, G Giacomelli,P Giacomelli,R Giacomelli,V Gibson,Wr Gibson,Jd Gillies,J Goldberg,Dm Gingrich,Mj Goodrick,W Gorn,C Grandi,E Gross,J Hagemann,Gg Hanson, M Hansroul, M Hansroul,Ck Hargrove,Pa Hart,M Hauschild,Cm Hawkes,E Heflin,Rj Hemingway,G Herten,Rd Heuer,Jc Hill,Sj Hillier,T Hilse,Pr Hobson,D Hochman,Rj Homer,Ak Honma,R Howard,Re Hughesjones,P Igokemenes,Dc Imrie, A Jawahery,Pw Jeffreys,H Jeremie,M Jimack,M Jones,Rwl Jones,P Jovanovic,C Jui,D Karlen,J Kanzaki,K Kawagoe,T Kawamoto, Rk Keeler,Rg Kellogg,Bw Kennedy,B King,J King,J Kirk,S Kluth,T Kobayashi,M Kobel,Ds Koetke,Tp Kokott,S Komamiya,R Kowalewski,T Kress,P Krieger,J Vonkrogh,P Kyberd,Gd Lafferty,H Lafoux,R Lahmann,Wp Lai,J Lauber,Jg Layter,P Leblanc,Am Lee,E Lefebvre,D Lellouch,C Leroy, J Letts,L Levinson,Sl Lloyd,Fk Loebinger,Gd Long,B Lorazo,Mj Losty,Xc Lou,J Ludwig,A Luig,M Mannelli, S Marcellini,C Markus,Aj Martin,Jp Martin,T Mashimo,W Matthews,P Mattig,U Maur,J Mckenna,Tj Mcmahon,Ai Mcnab,F Meijers,Fs Merritt,H Mes,A Michelini,Rp Middleton,G Mikenberg,Dj Miller,R Mir,W Mohr,A Montanari,T Mori,M Morii,U Muller, B Nellen, B Nijjhar,Sw Oneale,Fg Oakham,F Odorici,Ho Ogren,Nj Oldershaw,Cj Oram,Mj Oreglia, S Orito,F Palmonari,Jp Pansart,Gn Patrick,Mj Pearce,Pd Phillips,Je Pilcher,J Pinfold,De Plane,P Poffenberger, B Poli, A Posthaus,Tw Pritchard, H Przysiezniak,Mw Redmond,Dl Rees,D Rigby,Mg Rison,Sa Robins,D Robinson,N Rodning,Jm Roney,E Ros,Am Rossi, M Rosvick,P Routenburg,Y Rozen,K Runge,O Runolfsson,Dr Rust,M Sasaki,C Sbarra,Ad Schaile,O Schaile,F Scharf,P Scharffhansen,P Schenk,B Schmitt,M Schroder,Hc Schultzcoulon,P Schutz,M Schulz,C Schwick,J Schwiening,Wg Scott,M Settles,Tg Shears,Bc Shen,Ch Shepherdthemistocleous,P Sherwood,Gp Siroli, A Skillman,A Skuja,Am Smith,Tj Smith, Ga Snow,R Sobie,S Soldnerrembold,Rw Springer, M Sproston,A Stahl,M Starks,C Stegmann,K Stephens, J Steuerer,B Stockhausen,D Strom,P Szymanski,R Tafirout,H Takeda,T Takeshita, P Taras,S Tarem,M Tecchio,P Teixeiradias,N Tesch,Ma Thomson,O Tousignant,S Towers,M Tscheulin,T Tsukamoto,As Turcot,Mf Turnerwatson,P Utzat,R Vankooten,G Vasseur,P Vikas,M Vincter,A Wagner,Dl Wagner,Cp Ward,Dr Ward,Jj Ward,Pm Watkins,At Watson,Nk Watson,P Weber,Ps Wells,N Wermes,B Wilkens,Gw Wilson,Ja Wilson,Vh Winterer,T Wlodek,G Wolf,S Wotton,Tr Wyatt,A Yeaman,G Yekutieli,M Yurko,V Zacek,W Zeuner,Gt Zorn

Physics Letters B（1995）

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摘要

This letter presents an updated measurement of the lifetime of the B-s(0) meson using 3.6 million hadronic Z(0) decays recorded by the OPAL detector at LEP from 1990 to 1994. A sample of B-s(0) decays is obtained using D(s)(-)l(+) combinations, where the D-s(-) is reconstructed in either the phi pi(-) or K*K-0(-) decay mode. From 79 +/- 13 D(s)l combinations attributed to B-s(0) decays in this data sample, we measuretau(B-s(0)) = 1.54(-0.21)(+0.25) +/- 0.06 ps,where the errors are statistical and systematic, respectively.

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leptons,b mesons

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