A Study of b Quark Fragmentation into B 0 andB + Mesons at LEPThe OPAL CollaborationAbstractA
J. Allison,N. Altekamp,K. Ametewee,K. J. Anderson,S. Anderson,S. Arcelli,S. Asai,D. Axen,G. Azuelos,A. H. Ball,E. Barberio,R. J. Barlow,R. Bartoldus,J. R. Batley,G. Beaudoin,J. Bechtluft,A. Beck,G. A. Beck,C. Beeston,T. Behnke,K. W. Bell,G. Bella,S. Bentvelsen,P. Berlich,S. Bethke,O. Biebel,I. J. Bloodworth,P. Bock,H. M. Bosch,M. Boutemeur,S. Braibant,P. Bright-Thomas,R. M. Brown,H. J. Burckhart,C. Burgard,P. Capiluppi,R. K. Carnegie,A. A. Carter,J. R. Carter,C. Y. Chang,C. Charlesworth,D. G. Charlton,S. L. Chu,P. E. L. Clarke,J. C. Clayton,S. G. Clowes,I. Cohen,J. E. Conboy,O. C. Cooke,S. Dado,C. Dallapiccola,G. M. Dallavalle,C. Darling,S. De Jong,L. A. del Pozo,H. Deng,M. S. Dixit,E. do Couto e Silva,E. Duchovni,G. Duckeck,I. P. Duerdoth,U. C. Dunwoody,J. E. G. Edwards,P. G. Estabrooks,H. G. Evans,F. Fabbri,B. Fabbro,P. Fath,F. Fiedler,M. Fierro,M. Fincke-Keeler,H. M. Fischer,R. Folman,D. G. Fong,M. Foucher,H. Fukui,P. Gagnon,A. Gaidot,J. W. Gary,J. Gascon,S. M. Gascon-Shotkin,N. I. Geddes,C. Geich-Gimbel,S. W. Gensler,F. X. Gentit,T. Geralis,G. Giacomelli,P. Giacomelli,R. Giacomelli,V. Gibson,W. R. Gibson,J. D. Gillies,D. M. Gingrich,J. Goldberg,M. J. Goodrick,W. Gorn,C. Grandi,E. Gross,C. Hajdu,G. G. Hanson,M. Hansroul,M. Hapke,C. K. Hargrove,P. A. Hart,C. Hartmann,M. Hauschild,C. M. Hawkes,R. Hawkings,R. J. Hemingway,G. Herten,R. D. Heuer,J. C. Hill,S. J. Hillier,T. Hilse,P. R. Hobson,D. Hochman,R. J. Homer,A. K. Honma,R. Howard,R. E. Hughes-Jones,D. E. Hutchcroft,P. Igo-Kemenes,D. C. Imrie,A. Jawahery,H. Jeremie,M. Jimack,A. Joly,M. Jones,R. W. L. Jones,U. Jost,P. Jovanovic,J. Kanzaki,D. Karlen,K. Kawagoe,T. Kawamoto,R. K. Keeler,R. G. Kellogg,B. W. Kennedy,B. J. King,J. King,J. Kirk,S. Kluth,T. Kobayashi,M. Kobel,D. S. Koetke,T. P. Kokott,S. Komamiya,R. Kowalewski,T. Kress,P. Krieger,J. von Krogh,P. Kyberd,H. Lafoux,R. Lahmann,W. P. Lai,D. Lanske,J. Lauber,J. G. Layter,A. M. Lee,E. Lefebvre,D. Lellouch,J. Letts,L. Levinson,C. Lewis,S. L. Lloyd,F. K. Loebinger,G. D. Long,B. Lorazo,M. J. Losty,J. Ludwig,A. Luig,A. Malik,M. Mannelli,S. Marcellini,C. Markus,A. J. Martin,J. P. Martin,G. Martinez,T. Mashimo,W. Matthews,J. McKenna,E. A. Mckigney,T. J. McMahon,A. I. McNab,F. Meijers,S. Menke,F. S. Merritt,H. Mes,J. Meyer,A. Michelini,G. Mikenberg,D. J. Miller,R. Mir,W. Mohr,A. Montanari,T. Mori,M. Morii,B. Nellen,B. Nijjhar,S. W. O'Neale,F. G. Oakham,F. Odorici,H. O. Ogren,N. J. Oldershaw,C. J. Oram,M. J. Oreglia,S. Orito,M. Palazzo,J. P. Pansart,J. R. Pater,G. N. Patrick,M. J. Pearce,P. D. Phillips,J. E. Pilcher,J. Pinfold,D. E. Plane,B. Poli,A. Posthaus,T. W. Pritchard,H. Przysiezniak,D. L. Rees,D. Rigby,M. G. Rison,S. A. Robins,N. Rodning,J. M. Roney,E. Ros,A. M. Rossi,M. Rosvick,P. Routenburg,Y. Rozen,K. Runge,O. Runolfsson,D. R. Rust,R. Rylko,M. Sasaki,C. Sbarra,A. D. Schaile,O. Schaile,F. Scharf,P. Schar-Hansen,P. Schenk,B. Schmitt,H. C. Schultz-Coulon,M. Schulz,J. Schwiening,W. G. Scott,M. Settles,T. G. Shears,B. C. Shen,C. H. Shepherd-Themistocleous,P. Sherwood,G. P. Siroli,A. Sittler,A. Skillman,A. Skuja,A. M. Smith,T. J. Smith,G. A. Snow,R. Sobie,M. Sproston,A. Stahl,M. Starks,C. Stegmann,K. Stephens,J. Steuerer,B. Stockhausen,D. Strom,F. Strumia,P. Szymanski,P. Taras,S. Tarem,M. Tecchio,N. Tesch,M. A. Thomson,M. Tscheulin,T. Tsukamoto,E. Tsur,A. S. Turcot,P. Utzat,R. Van Kooten,G. Vasseur,P. Vikas,M. Vincter,E. H. Vokurka,A. Wagner,D. L. Wagner,C. P. Ward,D. R. Ward,J. J. Ward,P. M. Watkins,A. T. Watson,N. K. Watson,P. Weber,P. S. Wells,N. Wermes
semanticscholar（2007）
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摘要
A study of b quark fragmentation at LEP is presented using a sample of semileptonic B decays containing a fully reconstructed charm meson. The data are compared to several theoretical models for heavy quark fragmentation; the free parameters in these models are tted and the sensitivity of the model parameters to the rate of P-wave B meson production is studied. The mean scaled energy fraction of B 0 and B + mesons has been determined to be hx E i = 0:695 0:006 0:003 0:007, where the errors are statistical, systematic and model dependence respectively. This result is consistent with previous, less direct measurements from inclusive leptonic B decays. Also presented is a model independent t to the shape of the energy distribution of weakly decaying B mesons at LEP.
