Measurement Of The Decay B(-)-> D(*0)E(-)(Nu)Over-Bar(E)
B. Aubert,M. Bona, D. Boutigny,Y. Karyotakis,J. P. Lees,V. Poireau, X. Prudent,V. Tisserand,A. Zghiche,J. Garra Tico,E. Grauges, L. Lopez,A. Palano,M. Pappagallo,G. Eigen, B. Stugu, L. Sun,G. S. Abrams,M. Battaglia,D. N. Brown,J. Button-Shafer,R. N. Cahn,Y. Groysman,R. G. Jacobsen,J. A. Kadyk,L. T. Kerth,G. Kolomensky, G. Kukartsev,D. Lopes Pegna,G. Lynch,L. M. Mir, T. J. Orimoto,I. L. Osipenkov,M. T. Ronan, K. Tackmann, T. Tanabe,W. A. Wenzel,P. del Amo Sanchez, C. M. Hawkes, A. T. Watson,T. Held,H. Koch,M. Pelizaeus,T. Schroeder, M. Steinke, D. Walker,D. J. Asgeirsson,T. Cuhadar-Donszelmann,B. G. Fulsom,C. Hearty,T. S. Mattison,J. A. McKenna, A. Khan,M. Saleem, L. Teodorescu,V. E. Blinov,A. D. Bukin,V. P. Druzhinin,V. B. Golubev,A. P. Onuchin,S. I. Serednyakov,I. Skovpen,E. P. Solodov,K. Yu. Todyshev,M. Bondioli,S. Curry, I. Eschrich,D. Kirkby, A. J. Lankford,P. Lund,M. Mandelkern,E. C. Martin,D. P. Stoker, S. Abachi,C. Buchanan,S. D. Foulkes,J. W. Gary, F. Liu, B. C. Shen, L. 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Nugent,J. Roney, R. Sobie,P. Harrison,J. Ilic,T. Latham,G. Mohanty,H. Band,X. Chen, S. Dasu,K. Flood, J. Hollar,P. Kutter, Y. Pan,M. Pierini,R. Prepost, S. Wu,H. Neal
PHYSICAL REVIEW LETTERS（2008）
引用 46|浏览350
摘要
Using 226x10(6) B (B) over bar events recorded on the Gamma(4S) resonance with the BABAR detector at the SLAC e(+)e(-) PEP-II storage rings, we reconstruct B(-)-> D(*0)e(-)(nu) over bar (e) decays using the decay chain D(*0)-> D(0)pi(0) and D(0)-> K(-)pi(+). From the dependence of their differential rate on w, the dot product of the four velocities of B(-) and D(*0), and using the form factor description by Caprini et al. with the parameters F(1) and rho(2)(A1), we obtain the results rho(2)(A1)=1.16 +/- 0.06 +/- 0.08, F(1)vertical bar V(cb)vertical bar=(35.9 +/- 0.6 +/- 1.4) x 10(-3), and B(B(-)-> D(*0)e(-)(nu) over bar (e)) = (5.56 +/- 0.08 +/- 0.41)%.
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关键词
Particle decay,Resonance,Electron–positron annihilation,Pi,Analytical chemistry,Physics,Atomic physics
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