Measurement of the Branching Fractions of Exclusive B{yields}D{sup (*)}({pi})l{sup -}{nu}{sub l} Decays in Events with a Fully Reconstructed B Meson

Journal Article · Fri Apr 18 00:00:00 EDT 2008 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.100.151802· OSTI ID:21123870

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Garra Tico, J; 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]

---

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)

We report a measurement of the branching fractions for B{yields}D{sup (*)}({pi})l{sup -}{nu}{sub l} decays based on 341.1 fb{sup -1} of data collected at the {upsilon}(4S) resonance with the BABAR detector at the SLAC PEP-II e{sup +}e{sup -} storage rings. Events are tagged by fully reconstructing one of the B mesons in a hadronic decay mode. We obtain B(B{sup -}{yields}D{sup 0}l{sup -}{nu}{sub l})=(2.33{+-}0.09{sub stat}{+-}0.09{sub syst})%, B(B{sup -}{yields}D{sup *0}l{sup -}{nu}{sub l})=(5.83{+-}0.15{sub stat}{+-}0.30{sub syst})%, B(B{sup 0}{yields}D{sup +}l{sup -}{nu}{sub l})=(2.21{+-}0.11{sub stat}{+-}0.12{sub syst})%, B(B{sup 0}{yields}D{sup *+}l{sup -}{nu}{sub l})=(5.49{+-}0.16{sub stat}{+-}0.25{sub syst})%, B(B{sup -}{yields}D{sup +}{pi}{sup -}l{sup -}{nu}{sub l})=(0.42{+-}0.06{sub stat}{+-}0.03{sub syst})%, B(B{sup -}{yields}D{sup *+}{pi}{sup -}l{sup -}{nu}{sub l})=(0.59{+-}0.05{sub stat}{+-}0.04{sub syst})%, B(B{sup 0}{yields}D{sup 0}{pi}{sup +}l{sup -}{nu}{sub l})=(0.43{+-}0.08{sub stat}{+-}0.03{sub syst})%, and B(B{sup 0}{yields}D{sup *0}{pi}{sup +}l{sup -}{nu}{sub l})=(0.48{+-}0.08{sub stat}{+-}0.04{sub syst})%.

• OSTI ID: 21123870
• Journal Information: Physical Review Letters, Vol. 100, Issue 15; Other Information: DOI: 10.1103/PhysRevLett.100.151802; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
B NEUTRAL MESONS
BRANCHING RATIO
D NEUTRAL MESONS
D PLUS MESONS
HADRONIC PARTICLE DECAY
PARTICLE PRODUCTION
PIONS MINUS
STANFORD LINEAR ACCELERATOR CENTER