Measurement of the form factors for B¯0 → D*+lν¯

CLEO Collaboration

Research output: Contribution to journalArticle

104 Citations (Scopus)

Abstract

Using a sample of 2.6 × 106ϒ(4S) → BB¯ events collected with the CLEO II detector at the Cornell Electron Storage Ring, we have measured the form factors for B¯0 → D*+lν¯. We perform a three-parameter fit with the joint distribution of four kinematic variables to obtain the form-factor ratios R1 = 1.18 ± 0.30 ± 0.12 and R2 = 0.71 ± 0.22 ± 0.07, and the form-factor slope ρ2A1 = 0.91 ± 0.15 ± 0.06, which is closely related to the slope of the Isgur-Wise function. The form-factor ratios are consistent with predicted corrections to the heavy-quark symmetry limit R1 = R2 = 1.

Original languageEnglish
Pages (from-to)3898-3902
Number of pages5
JournalPhysical Review Letters
Volume76
Issue number21
DOIs
Publication statusPublished - 1996 May 20

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form factors
slopes
kinematics
quarks
detectors
symmetry
electrons

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

CLEO Collaboration. / Measurement of the form factors for B¯0 → D*+lν¯. In: Physical Review Letters. 1996 ; Vol. 76, No. 21. pp. 3898-3902.
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title = "Measurement of the form factors for B¯0 → D*+l−ν¯",
abstract = "Using a sample of 2.6 × 106ϒ(4S) → BB¯ events collected with the CLEO II detector at the Cornell Electron Storage Ring, we have measured the form factors for B¯0 → D*+l−ν¯. We perform a three-parameter fit with the joint distribution of four kinematic variables to obtain the form-factor ratios R1 = 1.18 ± 0.30 ± 0.12 and R2 = 0.71 ± 0.22 ± 0.07, and the form-factor slope ρ2A1 = 0.91 ± 0.15 ± 0.06, which is closely related to the slope of the Isgur-Wise function. The form-factor ratios are consistent with predicted corrections to the heavy-quark symmetry limit R1 = R2 = 1.",
author = "{CLEO Collaboration} and Duboscq, {J. E.} and R. Fulton and D. Fujino and Gan, {K. K.} and K. Honscheid and H. Kagan and R. Kass and J. Lee and M. Sung and C. White and R. Wanke and A. Wolf and Zoeller, {M. M.} and X. Fu and B. Nemati and Richichi, {S. J.} and Ross, {W. R.} and P. Skubic and M. Wood and M. Bishai and J. Fast and E. Gerndt and Hinson, {J. W.} and T. Miao and Miller, {D. H.} and M. Modesitt and Shibata, {E. I.} and Shipsey, {I. P.J.} and Wang, {P. N.} and L. Gibbons and Johnson, {S. D.} and Y. Kwon and S. Roberts and Thorndike, {E. H.} and Jessop, {C. P.} and K. Lingel and H. Marsiske and Perl, {M. L.} and Schaffner, {S. F.} and R. Wang and Coan, {T. E.} and J. Dominick and V. Fadeyev and I. Korolkov and M. Lambrecht and S. Sanghera and V. Shelkov and R. Stroynowski and I. Volobouev and G. Wei",
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Measurement of the form factors for B¯0 → D*+lν¯. / CLEO Collaboration.

In: Physical Review Letters, Vol. 76, No. 21, 20.05.1996, p. 3898-3902.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Measurement of the form factors for B¯0 → D*+l−ν¯

AU - CLEO Collaboration

AU - Duboscq, J. E.

AU - Fulton, R.

AU - Fujino, D.

AU - Gan, K. K.

AU - Honscheid, K.

AU - Kagan, H.

AU - Kass, R.

AU - Lee, J.

AU - Sung, M.

AU - White, C.

AU - Wanke, R.

AU - Wolf, A.

AU - Zoeller, M. M.

AU - Fu, X.

AU - Nemati, B.

AU - Richichi, S. J.

AU - Ross, W. R.

AU - Skubic, P.

AU - Wood, M.

AU - Bishai, M.

AU - Fast, J.

AU - Gerndt, E.

AU - Hinson, J. W.

AU - Miao, T.

AU - Miller, D. H.

AU - Modesitt, M.

AU - Shibata, E. I.

AU - Shipsey, I. P.J.

AU - Wang, P. N.

AU - Gibbons, L.

AU - Johnson, S. D.

AU - Kwon, Y.

AU - Roberts, S.

AU - Thorndike, E. H.

AU - Jessop, C. P.

AU - Lingel, K.

AU - Marsiske, H.

AU - Perl, M. L.

AU - Schaffner, S. F.

AU - Wang, R.

AU - Coan, T. E.

AU - Dominick, J.

AU - Fadeyev, V.

AU - Korolkov, I.

AU - Lambrecht, M.

AU - Sanghera, S.

AU - Shelkov, V.

AU - Stroynowski, R.

AU - Volobouev, I.

AU - Wei, G.

PY - 1996/5/20

Y1 - 1996/5/20

N2 - Using a sample of 2.6 × 106ϒ(4S) → BB¯ events collected with the CLEO II detector at the Cornell Electron Storage Ring, we have measured the form factors for B¯0 → D*+l−ν¯. We perform a three-parameter fit with the joint distribution of four kinematic variables to obtain the form-factor ratios R1 = 1.18 ± 0.30 ± 0.12 and R2 = 0.71 ± 0.22 ± 0.07, and the form-factor slope ρ2A1 = 0.91 ± 0.15 ± 0.06, which is closely related to the slope of the Isgur-Wise function. The form-factor ratios are consistent with predicted corrections to the heavy-quark symmetry limit R1 = R2 = 1.

AB - Using a sample of 2.6 × 106ϒ(4S) → BB¯ events collected with the CLEO II detector at the Cornell Electron Storage Ring, we have measured the form factors for B¯0 → D*+l−ν¯. We perform a three-parameter fit with the joint distribution of four kinematic variables to obtain the form-factor ratios R1 = 1.18 ± 0.30 ± 0.12 and R2 = 0.71 ± 0.22 ± 0.07, and the form-factor slope ρ2A1 = 0.91 ± 0.15 ± 0.06, which is closely related to the slope of the Isgur-Wise function. The form-factor ratios are consistent with predicted corrections to the heavy-quark symmetry limit R1 = R2 = 1.

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