Measurement of the B → Dℓν branching fractions and form factor

CDF Collaboration

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Using a sample of 3.3 × 106 B-meson decays collected with the CLEO detector at the Cornell Electron Storage Ring, we have studied B- → D0-ν and B0 → D+-ν decays, where ℓ- can be either e- or μ-. We distinguish B → Dℓν from other B semileptonic decays by examining the net momentum and energy of the particles recoiling against D - ℓ pairs. We find Γ(B → Dℓν) = (14.1±1.0±1.2)ns-1 and derive branching fractions for B- → D0-ν and B0 → D+-ν of (2.32±0.17±0.20)% and (2.20±0.16±0.19)%, respectively, where the uncertainties are statistical and systematic. We also investigate the B → Dℓν form factor and the implication of the result for |Vcb|.

Original languageEnglish
Pages (from-to)3746-3750
Number of pages5
JournalPhysical Review Letters
Volume82
Issue number19
DOIs
Publication statusPublished - 1999 Jan 1

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form factors
decay
recoilings
mesons
momentum
detectors
electrons
energy

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

CDF Collaboration. / Measurement of the B → Dℓν branching fractions and form factor. In: Physical Review Letters. 1999 ; Vol. 82, No. 19. pp. 3746-3750.
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abstract = "Using a sample of 3.3 × 106 B-meson decays collected with the CLEO detector at the Cornell Electron Storage Ring, we have studied B- → D0ℓ-ν and B0 → D+ℓ-ν decays, where ℓ- can be either e- or μ-. We distinguish B → Dℓν from other B semileptonic decays by examining the net momentum and energy of the particles recoiling against D - ℓ pairs. We find Γ(B → Dℓν) = (14.1±1.0±1.2)ns-1 and derive branching fractions for B- → D0ℓ-ν and B0 → D+ℓ-ν of (2.32±0.17±0.20){\%} and (2.20±0.16±0.19){\%}, respectively, where the uncertainties are statistical and systematic. We also investigate the B → Dℓν form factor and the implication of the result for |Vcb|.",
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Measurement of the B → Dℓν branching fractions and form factor. / CDF Collaboration.

In: Physical Review Letters, Vol. 82, No. 19, 01.01.1999, p. 3746-3750.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the B → Dℓν branching fractions and form factor

AU - CDF Collaboration

AU - Bartelt, J.

AU - Csorna, S. E.

AU - Mc Lean, K. W.

AU - Marka, S.

AU - Xu, Z.

AU - Godang, R.

AU - Kinoshita, K.

AU - Lai, I. C.

AU - Pomianowski, P.

AU - Schrenk, S.

AU - Bonvicini, G.

AU - Cinabro, D.

AU - Greene, R.

AU - Perera, L. P.

AU - Zhou, G. J.

AU - Chan, S.

AU - Eigen, G.

AU - Lipeles, E.

AU - Miller, J. S.

AU - Schmidtler, M.

AU - Shapiro, A.

AU - Sun, W. M.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Würthwein, F.

AU - Jaffe, D. E.

AU - Masek, G.

AU - Paar, H. P.

AU - Potter, E. M.

AU - Prell, S.

AU - Sharma, V.

AU - Asner, D. M.

AU - Gronberg, J.

AU - Hill, T. S.

AU - Lange, D. J.

AU - Morrison, R. J.

AU - Nelson, H. N.

AU - Nelson, T. K.

AU - Roberts, D.

AU - Behrens, B. H.

AU - Ford, W. T.

AU - Gritsan, A.

AU - Krieg, H.

AU - Roy, J.

AU - Smith, J. G.

AU - Alexander, J. P.

AU - Baker, R.

AU - Bebek, C.

AU - Berger, B. E.

AU - Kwon, Youngjoon

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Using a sample of 3.3 × 106 B-meson decays collected with the CLEO detector at the Cornell Electron Storage Ring, we have studied B- → D0ℓ-ν and B0 → D+ℓ-ν decays, where ℓ- can be either e- or μ-. We distinguish B → Dℓν from other B semileptonic decays by examining the net momentum and energy of the particles recoiling against D - ℓ pairs. We find Γ(B → Dℓν) = (14.1±1.0±1.2)ns-1 and derive branching fractions for B- → D0ℓ-ν and B0 → D+ℓ-ν of (2.32±0.17±0.20)% and (2.20±0.16±0.19)%, respectively, where the uncertainties are statistical and systematic. We also investigate the B → Dℓν form factor and the implication of the result for |Vcb|.

AB - Using a sample of 3.3 × 106 B-meson decays collected with the CLEO detector at the Cornell Electron Storage Ring, we have studied B- → D0ℓ-ν and B0 → D+ℓ-ν decays, where ℓ- can be either e- or μ-. We distinguish B → Dℓν from other B semileptonic decays by examining the net momentum and energy of the particles recoiling against D - ℓ pairs. We find Γ(B → Dℓν) = (14.1±1.0±1.2)ns-1 and derive branching fractions for B- → D0ℓ-ν and B0 → D+ℓ-ν of (2.32±0.17±0.20)% and (2.20±0.16±0.19)%, respectively, where the uncertainties are statistical and systematic. We also investigate the B → Dℓν form factor and the implication of the result for |Vcb|.

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