Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors

S. Sanghera; T. Skwarnicki; R. Stroynowski; M. Artuso; M. Goldberg; N. Horwitz; R. Kennett; G. C. Moneti; F. Muheim; S. Playfer; Y. Rozen; P. Rubin; S. Stone; M. Thulasidas; W. M. Yao; G. Zhu; A. V. Barnes; J. Bartelt; S. E. Csorna; Z. Egyed; V. Jain; P. Sheldon; D. S. Akerib; B. Barish; M. Chadha; D. F. Cowen; G. Eigen; J. S. Miller; J. Urheim; A. J. Weinstein; D. Acosta; G. Masek; B. Ong; H. Paar; M. Sivertz; A. Bean; J. Gronberg; R. Kutschke; S. Menary; R. J. Morrison; H. Nelson; J. Richman; H. Tajima; D. Schmidt; D. Sperka; M. Witherell; M. Procario; M. Daoudi; W. T. Ford; D. R. Johnson

doi:10.1103/PhysRevD.47.791

Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors

S. Sanghera, T. Skwarnicki, R. Stroynowski, M. Artuso, M. Goldberg, N. Horwitz, R. Kennett, G. C. Moneti, F. Muheim, S. Playfer, Y. Rozen, P. Rubin, S. Stone, M. Thulasidas, W. M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, Z. EgyedV. Jain, P. Sheldon, D. S. Akerib, B. Barish, M. Chadha, D. F. Cowen, G. Eigen, J. S. Miller, J. Urheim, A. J. Weinstein, D. Acosta, G. Masek, B. Ong, H. Paar, M. Sivertz, A. Bean, J. Gronberg, R. Kutschke, S. Menary, R. J. Morrison, H. Nelson, J. Richman, H. Tajima, D. Schmidt, D. Sperka, M. Witherell, M. Procario, M. Daoudi, W. T. Ford, D. R. Johnson

Physics and Astronomy (Twin Cities)

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

43 Scopus citations

Abstract

We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.

Original language	English (US)
Pages (from-to)	791-798
Number of pages	8
Journal	Physical Review D
Volume	47
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.47.791
State	Published - 1993

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Sanghera, S., Skwarnicki, T., Stroynowski, R., Artuso, M., Goldberg, M., Horwitz, N., Kennett, R., Moneti, G. C., Muheim, F., Playfer, S., Rozen, Y., Rubin, P., Stone, S., Thulasidas, M., Yao, W. M., Zhu, G., Barnes, A. V., Bartelt, J., Csorna, S. E., ... Johnson, D. R. (1993). Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors. Physical Review D, 47(3), 791-798. https://doi.org/10.1103/PhysRevD.47.791

Sanghera, S, Skwarnicki, T, Stroynowski, R, Artuso, M, Goldberg, M, Horwitz, N, Kennett, R, Moneti, GC, Muheim, F, Playfer, S, Rozen, Y, Rubin, P, Stone, S, Thulasidas, M, Yao, WM, Zhu, G, Barnes, AV, Bartelt, J, Csorna, SE, Egyed, Z, Jain, V, Sheldon, P, Akerib, DS, Barish, B, Chadha, M, Cowen, DF, Eigen, G, Miller, JS, Urheim, J, Weinstein, AJ, Acosta, D, Masek, G, Ong, B, Paar, H, Sivertz, M, Bean, A, Gronberg, J, Kutschke, R, Menary, S, Morrison, RJ, Nelson, H, Richman, J, Tajima, H, Schmidt, D, Sperka, D, Witherell, M, Procario, M, Daoudi, M, Ford, WT & Johnson, DR 1993, 'Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors', Physical Review D, vol. 47, no. 3, pp. 791-798. https://doi.org/10.1103/PhysRevD.47.791

@article{6c13606db98d40dab09a98c1d87f1198,

title = "Lepton asymmetry measurements in {\=B}→D*l-{\=ν}l and implications for V-A and the form factors",

abstract = "We present a measurement of the lepton decay asymmetry Afb in the reaction {\=B}→D*l-{\=ν}l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.",

author = "S. Sanghera and T. Skwarnicki and R. Stroynowski and M. Artuso and M. Goldberg and N. Horwitz and R. Kennett and Moneti, \{G. C.\} and F. Muheim and S. Playfer and Y. Rozen and P. Rubin and S. Stone and M. Thulasidas and Yao, \{W. M.\} and G. Zhu and Barnes, \{A. V.\} and J. Bartelt and Csorna, \{S. E.\} and Z. Egyed and V. Jain and P. Sheldon and Akerib, \{D. S.\} and B. Barish and M. Chadha and Cowen, \{D. F.\} and G. Eigen and Miller, \{J. S.\} and J. Urheim and Weinstein, \{A. J.\} and D. Acosta and G. Masek and B. Ong and H. Paar and M. Sivertz and A. Bean and J. Gronberg and R. Kutschke and S. Menary and Morrison, \{R. J.\} and H. Nelson and J. Richman and H. Tajima and D. Schmidt and D. Sperka and M. Witherell and M. Procario and M. Daoudi and Ford, \{W. T.\} and Johnson, \{D. R.\}",

year = "1993",

doi = "10.1103/PhysRevD.47.791",

language = "English (US)",

volume = "47",

pages = "791--798",

journal = "Physical Review D",

issn = "0556-2821",

publisher = "American Physical Society",

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T1 - Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors

AU - Sanghera, S.

AU - Skwarnicki, T.

AU - Stroynowski, R.

AU - Artuso, M.

AU - Goldberg, M.

AU - Horwitz, N.

AU - Kennett, R.

AU - Moneti, G. C.

AU - Muheim, F.

AU - Playfer, S.

AU - Rozen, Y.

AU - Rubin, P.

AU - Stone, S.

AU - Thulasidas, M.

AU - Yao, W. M.

AU - Zhu, G.

AU - Barnes, A. V.

AU - Bartelt, J.

AU - Csorna, S. E.

AU - Egyed, Z.

AU - Jain, V.

AU - Sheldon, P.

AU - Akerib, D. S.

AU - Barish, B.

AU - Chadha, M.

AU - Cowen, D. F.

AU - Eigen, G.

AU - Miller, J. S.

AU - Urheim, J.

AU - Weinstein, A. J.

AU - Acosta, D.

AU - Masek, G.

AU - Ong, B.

AU - Paar, H.

AU - Sivertz, M.

AU - Bean, A.

AU - Gronberg, J.

AU - Kutschke, R.

AU - Menary, S.

AU - Morrison, R. J.

AU - Nelson, H.

AU - Richman, J.

AU - Tajima, H.

AU - Schmidt, D.

AU - Sperka, D.

AU - Witherell, M.

AU - Procario, M.

AU - Daoudi, M.

AU - Ford, W. T.

AU - Johnson, D. R.

PY - 1993

Y1 - 1993

N2 - We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.

AB - We present a measurement of the lepton decay asymmetry Afb in the reaction B̄→D*l-ν̄l using data collected with the CLEO II detector at the Cornell Electron Storage Ring (CESR). The value of Afb confirms that the chirality of the weak interaction is predominantly left-handed in b→c transitions as expected in the standard model, if it is assumed that the lepton current is also left-handed. Using Afb and the previously determined branching ratio, q2 distribution, and D* polarization, we obtain the first measurement of the form-factor ratios that are used to describe this semileptonic decay.

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U2 - 10.1103/PhysRevD.47.791

DO - 10.1103/PhysRevD.47.791

M3 - Article

AN - SCOPUS:4243474388

SN - 0556-2821

VL - 47

SP - 791

EP - 798

JO - Physical Review D

JF - Physical Review D

IS - 3

ER -

Lepton asymmetry measurements in B̄→D*l-ν̄l and implications for V-A and the form factors

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