Measurement of the B¯→Dlv¯ partial width and form factor parameters

M. Athanas; P. Avery; C. D. Jones; M. Lohner; C. Prescott; J. Yelton; J. Zheng; G. Brandenburg; R. A. Briere; A. Ershov; Y. S. Gao; D. Y.J. Kim; R. Wilson; H. Yamamoto; T. E. Browder; F. Li; Y. Li; J. L. Rodriguez; T. Bergfeld; B. I. Eisenstein; J. Ernst; G. E. Gladding; G. D. Gollin; R. M. Hans; E. Johnson; I. Karliner; M. A. Marsh; M. Palmer; M. Selen; J. J. Thaler; K. W. Edwards; A. Bellerive; R. Janicek; D. B. MacFarlane; P. M. Patel; A. J. Sadoff; R. Ammar; P. Baringer; A. Bean; D. Besson; D. Coppage; C. Darling; R. Davis; N. Hancock; S. Kotov; I. Kravchenko; N. Kwak; Yuichi Kubota; T. Riehle; CLEO Collaboration

doi:10.1103/PhysRevLett.79.2208

Measurement of the B^¯→Dlv^¯ partial width and form factor parameters

M. Athanas
, P. Avery
, C. D. Jones
, M. Lohner
, C. Prescott
, J. Yelton
, J. Zheng
, G. Brandenburg
, R. A. Briere
, A. Ershov
, Y. S. Gao
, D. Y.J. Kim
, R. Wilson
, H. Yamamoto
, T. E. Browder
, F. Li
, Y. Li
, J. L. Rodriguez
, T. Bergfeld
, B. I. Eisenstein

J. Ernst, G. E. Gladding, G. D. Gollin, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, M. Selen, J. J. Thaler, K. W. Edwards, A. Bellerive, R. Janicek, D. B. MacFarlane, P. M. Patel, A. J. Sadoff, R. Ammar, P. Baringer, A. Bean, D. Besson, D. Coppage, C. Darling, R. Davis, N. Hancock, S. Kotov, I. Kravchenko, N. Kwak, Yuichi Kubota, T. Riehle, CLEO Collaboration

Physics and Astronomy (Twin Cities)

Research output: Contribution to journal › Article › peer-review

26 Scopus citations

Abstract

We have studied the decayB^¯→Dlν^¯ where l = e or μ. From a fit to the differential decay ratedγ/dwwe measure the rate normalizationF_D(1) |V cb | and form factor slopeρ^ˆ2_D, and, using measured values ofτ_B, findγ(B^¯→Dlv^¯) = (12.0 ± 0.9 ± 2.1) ns⁻¹ . The resulting branching fractions areB (B^¯0 → D⁺ l⁻^ν¯) = (1.87 ± 0.15 ± 0.32)% and B (B⁻ → D⁰l⁻ν^¯) = (1.94 ± 0.15 ± 0.34)% . The form factor parameters are in agreement with those measured in B^¯ → D*l⁻ν^¯ decays, as predicted by heavy quark effective theory.

Original language	English (US)
Pages (from-to)	2208-2212
Number of pages	5
Journal	Physical review letters
Volume	79
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.79.2208
State	Published - 1997

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10.1103/PhysRevLett.79.2208

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Athanas, M., Avery, P., Jones, C. D., Lohner, M., Prescott, C., Yelton, J., Zheng, J., Brandenburg, G., Briere, R. A., Ershov, A., Gao, Y. S., Kim, D. Y. J., Wilson, R., Yamamoto, H., Browder, T. E., Li, F., Li, Y., Rodriguez, J. L., Bergfeld, T., ... CLEO Collaboration (1997). Measurement of the B^¯→Dlv^¯ partial width and form factor parameters. Physical review letters, 79(12), 2208-2212. https://doi.org/10.1103/PhysRevLett.79.2208

Athanas, M, Avery, P, Jones, CD, Lohner, M, Prescott, C, Yelton, J, Zheng, J, Brandenburg, G, Briere, RA, Ershov, A, Gao, YS, Kim, DYJ, Wilson, R, Yamamoto, H, Browder, TE, Li, F, Li, Y, Rodriguez, JL, Bergfeld, T, Eisenstein, BI, Ernst, J, Gladding, GE, Gollin, GD, Hans, RM, Johnson, E, Karliner, I, Marsh, MA, Palmer, M, Selen, M, Thaler, JJ, Edwards, KW, Bellerive, A, Janicek, R, MacFarlane, DB, Patel, PM, Sadoff, AJ, Ammar, R, Baringer, P, Bean, A, Besson, D, Coppage, D, Darling, C, Davis, R, Hancock, N, Kotov, S, Kravchenko, I, Kwak, N, Kubota, Y, Riehle, T & CLEO Collaboration 1997, 'Measurement of the B^¯→Dlv^¯ partial width and form factor parameters', Physical review letters, vol. 79, no. 12, pp. 2208-2212. https://doi.org/10.1103/PhysRevLett.79.2208

@article{e1a75697ce9946009e8a59a17f19e61f,

title = "Measurement of the B¯→Dlv¯ partial width and form factor parameters",

abstract = "We have studied the decayB¯→Dlν¯ where l = e or μ. From a fit to the differential decay ratedγ/dwwe measure the rate normalizationFD(1) |V cb | and form factor slopeρˆ2D, and, using measured values ofτB, findγ(B¯→Dlv¯) = (12.0 ± 0.9 ± 2.1) ns−1 . The resulting branching fractions areB (B¯0 → D+ l−ν¯) = (1.87 ± 0.15 ± 0.32)\% and B (B− → D0l−ν¯) = (1.94 ± 0.15 ± 0.34)\% . The form factor parameters are in agreement with those measured in B¯ → D*l−ν¯ decays, as predicted by heavy quark effective theory.",

author = "M. Athanas and P. Avery and Jones, \{C. D.\} and M. Lohner and C. Prescott and J. Yelton and J. Zheng and G. Brandenburg and Briere, \{R. A.\} and A. Ershov and Gao, \{Y. S.\} and Kim, \{D. Y.J.\} and R. Wilson and H. Yamamoto and Browder, \{T. E.\} and F. Li and Y. Li and Rodriguez, \{J. L.\} and T. Bergfeld and Eisenstein, \{B. I.\} and J. Ernst and Gladding, \{G. E.\} and Gollin, \{G. D.\} and Hans, \{R. M.\} and E. Johnson and I. Karliner and Marsh, \{M. A.\} and M. Palmer and M. Selen and Thaler, \{J. J.\} and Edwards, \{K. W.\} and A. Bellerive and R. Janicek and MacFarlane, \{D. B.\} and Patel, \{P. M.\} and Sadoff, \{A. J.\} and R. Ammar and P. Baringer and A. Bean and D. Besson and D. Coppage and C. Darling and R. Davis and N. Hancock and S. Kotov and I. Kravchenko and N. Kwak and Yuichi Kubota and T. Riehle and \{CLEO Collaboration\}",

year = "1997",

doi = "10.1103/PhysRevLett.79.2208",

language = "English (US)",

volume = "79",

pages = "2208--2212",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

}

TY - JOUR

T1 - Measurement of the B¯→Dlv¯ partial width and form factor parameters

AU - Athanas, M.

AU - Avery, P.

AU - Jones, C. D.

AU - Lohner, M.

AU - Prescott, C.

AU - Yelton, J.

AU - Zheng, J.

AU - Brandenburg, G.

AU - Briere, R. A.

AU - Ershov, A.

AU - Gao, Y. S.

AU - Kim, D. Y.J.

AU - Wilson, R.

AU - Yamamoto, H.

AU - Browder, T. E.

AU - Li, F.

AU - Li, Y.

AU - Rodriguez, J. L.

AU - Bergfeld, T.

AU - Eisenstein, B. I.

AU - Ernst, J.

AU - Gladding, G. E.

AU - Gollin, G. D.

AU - Hans, R. M.

AU - Johnson, E.

AU - Karliner, I.

AU - Marsh, M. A.

AU - Palmer, M.

AU - Selen, M.

AU - Thaler, J. J.

AU - Edwards, K. W.

AU - Bellerive, A.

AU - Janicek, R.

AU - MacFarlane, D. B.

AU - Patel, P. M.

AU - Sadoff, A. J.

AU - Ammar, R.

AU - Baringer, P.

AU - Bean, A.

AU - Besson, D.

AU - Coppage, D.

AU - Darling, C.

AU - Davis, R.

AU - Hancock, N.

AU - Kotov, S.

AU - Kravchenko, I.

AU - Kwak, N.

AU - Kubota, Yuichi

AU - Riehle, T.

AU - CLEO Collaboration

PY - 1997

Y1 - 1997

N2 - We have studied the decayB¯→Dlν¯ where l = e or μ. From a fit to the differential decay ratedγ/dwwe measure the rate normalizationFD(1) |V cb | and form factor slopeρˆ2D, and, using measured values ofτB, findγ(B¯→Dlv¯) = (12.0 ± 0.9 ± 2.1) ns−1 . The resulting branching fractions areB (B¯0 → D+ l−ν¯) = (1.87 ± 0.15 ± 0.32)% and B (B− → D0l−ν¯) = (1.94 ± 0.15 ± 0.34)% . The form factor parameters are in agreement with those measured in B¯ → D*l−ν¯ decays, as predicted by heavy quark effective theory.

AB - We have studied the decayB¯→Dlν¯ where l = e or μ. From a fit to the differential decay ratedγ/dwwe measure the rate normalizationFD(1) |V cb | and form factor slopeρˆ2D, and, using measured values ofτB, findγ(B¯→Dlv¯) = (12.0 ± 0.9 ± 2.1) ns−1 . The resulting branching fractions areB (B¯0 → D+ l−ν¯) = (1.87 ± 0.15 ± 0.32)% and B (B− → D0l−ν¯) = (1.94 ± 0.15 ± 0.34)% . The form factor parameters are in agreement with those measured in B¯ → D*l−ν¯ decays, as predicted by heavy quark effective theory.

UR - https://www.scopus.com/pages/publications/0000295120

UR - https://www.scopus.com/pages/publications/0000295120#tab=citedBy

U2 - 10.1103/PhysRevLett.79.2208

DO - 10.1103/PhysRevLett.79.2208

M3 - Article

AN - SCOPUS:0000295120

SN - 0031-9007

VL - 79

SP - 2208

EP - 2212

JO - Physical review letters

JF - Physical review letters

IS - 12

ER -

Measurement of the B^¯→Dlv^¯ partial width and form factor parameters

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