Measurement of the Decay B{sup -}{yields}D*{sup 0}e{sup -}{nu}{sub e}

Journal Article · Fri Jun 13 04:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.231803· OSTI ID:21134016

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. Universita di Bari, Dipartimento di Fisica and INFN, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory, and University of California, Berkeley, California 94720 (United States)

Using 226x10{sup 6} BB events recorded on the {upsilon}(4S) resonance with the BABAR detector at the SLAC e{sup +}e{sup -} PEP-II storage rings, we reconstruct B{sup -}{yields}D*{sup 0}e{sup -}{nu}{sub e} decays using the decay chain D*{sup 0}{yields}D{sup 0}{pi}{sup 0} and D{sup 0}{yields}K{sup -}{pi}{sup +}. From the dependence of their differential rate on w, the dot product of the four velocities of B{sup -} and D*{sup 0}, and using the form factor description by Caprini et al. with the parameters F(1) and {rho}{sub A{sub 1}}{sup 2}, we obtain the results {rho}{sub A{sub 1}}{sup 2}=1.16{+-}0.06{+-}0.08, F(1)|V{sub cb}|=(35.9{+-}0.6{+-}1.4)x10{sup -3}, and B(B{sup -}{yields}D*{sup 0}e{sup -}{nu}{sub e})=(5.56{+-}0.08{+-}0.41)%.

• OSTI ID: 21134016
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 100; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
D NEUTRAL MESONS
ELECTRON NEUTRINOS
ELECTRONS
FORM FACTORS
PARTICLE DECAY
PIONS PLUS
STANFORD LINEAR ACCELERATOR CENTER
STORAGE RINGS