The electron spectrum from B meson decays

K. Wachs; D. Antreasyan; H. W. Bartels; Ch Bieler; J. K. Bienlein; A. Bizzeti; E. D. Bloom; K. Brockmüller; A. Cartacci; M. Cavalli-Sforza; R. Clare; A. Compagnucci; G. Conforto; S. Cooper; D. Coyne; G. Drews; K. Fairfield; G. Folger; A. Fridman; D. Gelphman; G. Glaser; G. Godfrey; K. Graaf; F. H. Heimlich; F. H. Heinsius; R. Hofstadter; J. Irion; Z. Jakubowski; K. Karch; S. Keh; T. Kiel; H. Kilian; I. Kirkbride; M. Kobel; W. Koch; A. C. König; K. Königsmann; S. Krüger; G. Landi; S. Leffler; R. Lekebusch; A. M. Litke; S. Lowe; B. Lurz; H. Marsiske; W. Maschmann; P. McBride; H. Meyer; B. Muryn; W. J. Metzger; B. Monteleoni; B. Niczyporuk; G. Nowak; C. Peck; C. Pegel; P. G. Pelfer; F. C. Porter; M. Reidenbach; M. Scheer; P. Schmitt; J. Schotanus; J. Schütte; A. Schwarz; F. Selonke; D. Sievers; T. Skwarnicki; V. Stock; K. Strauch; U. Strohbusch; J. Tompkins; B. van Uitert; R. T. Van de Walle; A. Voigt; U. Volland; K. Wacker; W. Walk; H. Wegener; D. Williams

doi:10.1007/BF01565126

The electron spectrum from B meson decays

K. Wachs, D. Antreasyan, H. W. Bartels, Ch Bieler, J. K. Bienlein, A. Bizzeti, E. D. Bloom, K. Brockmüller, A. Cartacci, M. Cavalli-Sforza, R. Clare, A. Compagnucci, G. Conforto, S. Cooper, D. Coyne, G. Drews, K. Fairfield, G. Folger, A. Fridman, D. GelphmanG. Glaser, G. Godfrey, K. Graaf, F. H. Heimlich, F. H. Heinsius, R. Hofstadter, J. Irion, Z. Jakubowski, K. Karch, S. Keh, T. Kiel, H. Kilian, I. Kirkbride, M. Kobel, W. Koch, A. C. König, K. Königsmann, S. Krüger, G. Landi, S. Leffler, R. Lekebusch, A. M. Litke, S. Lowe, B. Lurz, H. Marsiske, W. Maschmann, P. McBride, H. Meyer, B. Muryn, W. J. Metzger, B. Monteleoni, B. Niczyporuk, G. Nowak, C. Peck, C. Pegel, P. G. Pelfer, F. C. Porter, M. Reidenbach, M. Scheer, P. Schmitt, J. Schotanus, J. Schütte, A. Schwarz, F. Selonke, D. Sievers, T. Skwarnicki, V. Stock, K. Strauch, U. Strohbusch, J. Tompkins, B. van Uitert, R. T. Van de Walle, A. Voigt, U. Volland, K. Wacker, W. Walk, H. Wegener, D. Williams

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

36 Scopus citations

Abstract

The Crystal Ball Collaboration has measured the energy spectrum of electrons from semileptonic B meson decays at the e⁺e^- storage ring DORIS II. Branching ratios and weak mixing angles of the Kobayashi-Maskawa matrix are determined using several models for the hadronic matrix elements. We obtain the branching ratio for semileptonic. B decays to charmed states BR(B→evX_c)=(11.7±0.4±1.0)%. Our result for the corresponding Kobayashi-Maskawa matrix element is |V_cb|=0.052±0.006. The model dependence of both results is included in the error. We have not observed semileptonic B decays to non-charmed mesons. Analyzing the measured electron spectrum above 2.4 GeV, where no b→c decays contribute, we find BR(B→evX_u)/BR(B→evX_c)<6.5% at the 90% confidence level. This corresponds to an upper limit |V_ub/V_cb|<0.21.

Original language	English (US)
Pages (from-to)	33-48
Number of pages	16
Journal	Zeitschrift für Physik C Particles and Fields
Volume	42
Issue number	1
DOIs	https://doi.org/10.1007/BF01565126
State	Published - Mar 1989
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1007/BF01565126

Cite this

Wachs, K., Antreasyan, D., Bartels, H. W., Bieler, C., Bienlein, J. K., Bizzeti, A., Bloom, E. D., Brockmüller, K., Cartacci, A., Cavalli-Sforza, M., Clare, R., Compagnucci, A., Conforto, G., Cooper, S., Coyne, D., Drews, G., Fairfield, K., Folger, G., Fridman, A., ... Williams, D. (1989). The electron spectrum from B meson decays. Zeitschrift für Physik C Particles and Fields, 42(1), 33-48. https://doi.org/10.1007/BF01565126

Wachs, K, Antreasyan, D, Bartels, HW, Bieler, C, Bienlein, JK, Bizzeti, A, Bloom, ED, Brockmüller, K, Cartacci, A, Cavalli-Sforza, M, Clare, R, Compagnucci, A, Conforto, G, Cooper, S, Coyne, D, Drews, G, Fairfield, K, Folger, G, Fridman, A, Gelphman, D, Glaser, G, Godfrey, G, Graaf, K, Heimlich, FH, Heinsius, FH, Hofstadter, R, Irion, J, Jakubowski, Z, Karch, K, Keh, S, Kiel, T, Kilian, H, Kirkbride, I, Kobel, M, Koch, W, König, AC, Königsmann, K, Krüger, S, Landi, G, Leffler, S, Lekebusch, R, Litke, AM, Lowe, S, Lurz, B, Marsiske, H, Maschmann, W, McBride, P, Meyer, H, Muryn, B, Metzger, WJ, Monteleoni, B, Niczyporuk, B, Nowak, G, Peck, C, Pegel, C, Pelfer, PG, Porter, FC, Reidenbach, M, Scheer, M, Schmitt, P, Schotanus, J, Schütte, J, Schwarz, A, Selonke, F, Sievers, D, Skwarnicki, T, Stock, V, Strauch, K, Strohbusch, U, Tompkins, J, van Uitert, B, Van de Walle, RT, Voigt, A, Volland, U, Wacker, K, Walk, W, Wegener, H & Williams, D 1989, 'The electron spectrum from B meson decays', Zeitschrift für Physik C Particles and Fields, vol. 42, no. 1, pp. 33-48. https://doi.org/10.1007/BF01565126

@article{3ace0d782f5045a5b580005f8eefd24b,

title = "The electron spectrum from B meson decays",

abstract = "The Crystal Ball Collaboration has measured the energy spectrum of electrons from semileptonic B meson decays at the e+e- storage ring DORIS II. Branching ratios and weak mixing angles of the Kobayashi-Maskawa matrix are determined using several models for the hadronic matrix elements. We obtain the branching ratio for semileptonic. B decays to charmed states BR(B→evXc)=(11.7±0.4±1.0)%. Our result for the corresponding Kobayashi-Maskawa matrix element is |Vcb|=0.052±0.006. The model dependence of both results is included in the error. We have not observed semileptonic B decays to non-charmed mesons. Analyzing the measured electron spectrum above 2.4 GeV, where no b→c decays contribute, we find BR(B→evXu)/BR(B→evXc)<6.5% at the 90% confidence level. This corresponds to an upper limit |Vub/Vcb|<0.21.",

author = "K. Wachs and D. Antreasyan and Bartels, {H. W.} and Ch Bieler and Bienlein, {J. K.} and A. Bizzeti and Bloom, {E. D.} and K. Brockm{\"u}ller and A. Cartacci and M. Cavalli-Sforza and R. Clare and A. Compagnucci and G. Conforto and S. Cooper and D. Coyne and G. Drews and K. Fairfield and G. Folger and A. Fridman and D. Gelphman and G. Glaser and G. Godfrey and K. Graaf and Heimlich, {F. H.} and Heinsius, {F. H.} and R. Hofstadter and J. Irion and Z. Jakubowski and K. Karch and S. Keh and T. Kiel and H. Kilian and I. Kirkbride and M. Kobel and W. Koch and K{\"o}nig, {A. C.} and K. K{\"o}nigsmann and S. Kr{\"u}ger and G. Landi and S. Leffler and R. Lekebusch and Litke, {A. M.} and S. Lowe and B. Lurz and H. Marsiske and W. Maschmann and P. McBride and H. Meyer and B. Muryn and Metzger, {W. J.} and B. Monteleoni and B. Niczyporuk and G. Nowak and C. Peck and C. Pegel and Pelfer, {P. G.} and Porter, {F. C.} and M. Reidenbach and M. Scheer and P. Schmitt and J. Schotanus and J. Sch{\"u}tte and A. Schwarz and F. Selonke and D. Sievers and T. Skwarnicki and V. Stock and K. Strauch and U. Strohbusch and J. Tompkins and {van Uitert}, B. and {Van de Walle}, {R. T.} and A. Voigt and U. Volland and K. Wacker and W. Walk and H. Wegener and D. Williams",

year = "1989",

month = mar,

doi = "10.1007/BF01565126",

language = "English (US)",

volume = "42",

pages = "33--48",

journal = "Zeitschrift f{\"u}r Physik C Particles and Fields",

issn = "0170-9739",

publisher = "Springer New York",

number = "1",

}

TY - JOUR

T1 - The electron spectrum from B meson decays

AU - Wachs, K.

AU - Antreasyan, D.

AU - Bartels, H. W.

AU - Bieler, Ch

AU - Bienlein, J. K.

AU - Bizzeti, A.

AU - Bloom, E. D.

AU - Brockmüller, K.

AU - Cartacci, A.

AU - Cavalli-Sforza, M.

AU - Clare, R.

AU - Compagnucci, A.

AU - Conforto, G.

AU - Cooper, S.

AU - Coyne, D.

AU - Drews, G.

AU - Fairfield, K.

AU - Folger, G.

AU - Fridman, A.

AU - Gelphman, D.

AU - Glaser, G.

AU - Godfrey, G.

AU - Graaf, K.

AU - Heimlich, F. H.

AU - Heinsius, F. H.

AU - Hofstadter, R.

AU - Irion, J.

AU - Jakubowski, Z.

AU - Karch, K.

AU - Keh, S.

AU - Kiel, T.

AU - Kilian, H.

AU - Kirkbride, I.

AU - Kobel, M.

AU - Koch, W.

AU - König, A. C.

AU - Königsmann, K.

AU - Krüger, S.

AU - Landi, G.

AU - Leffler, S.

AU - Lekebusch, R.

AU - Litke, A. M.

AU - Lowe, S.

AU - Lurz, B.

AU - Marsiske, H.

AU - Maschmann, W.

AU - McBride, P.

AU - Meyer, H.

AU - Muryn, B.

AU - Metzger, W. J.

AU - Monteleoni, B.

AU - Niczyporuk, B.

AU - Nowak, G.

AU - Peck, C.

AU - Pegel, C.

AU - Pelfer, P. G.

AU - Porter, F. C.

AU - Reidenbach, M.

AU - Scheer, M.

AU - Schmitt, P.

AU - Schotanus, J.

AU - Schütte, J.

AU - Schwarz, A.

AU - Selonke, F.

AU - Sievers, D.

AU - Skwarnicki, T.

AU - Stock, V.

AU - Strauch, K.

AU - Strohbusch, U.

AU - Tompkins, J.

AU - van Uitert, B.

AU - Van de Walle, R. T.

AU - Voigt, A.

AU - Volland, U.

AU - Wacker, K.

AU - Walk, W.

AU - Wegener, H.

AU - Williams, D.

PY - 1989/3

Y1 - 1989/3

N2 - The Crystal Ball Collaboration has measured the energy spectrum of electrons from semileptonic B meson decays at the e+e- storage ring DORIS II. Branching ratios and weak mixing angles of the Kobayashi-Maskawa matrix are determined using several models for the hadronic matrix elements. We obtain the branching ratio for semileptonic. B decays to charmed states BR(B→evXc)=(11.7±0.4±1.0)%. Our result for the corresponding Kobayashi-Maskawa matrix element is |Vcb|=0.052±0.006. The model dependence of both results is included in the error. We have not observed semileptonic B decays to non-charmed mesons. Analyzing the measured electron spectrum above 2.4 GeV, where no b→c decays contribute, we find BR(B→evXu)/BR(B→evXc)<6.5% at the 90% confidence level. This corresponds to an upper limit |Vub/Vcb|<0.21.

AB - The Crystal Ball Collaboration has measured the energy spectrum of electrons from semileptonic B meson decays at the e+e- storage ring DORIS II. Branching ratios and weak mixing angles of the Kobayashi-Maskawa matrix are determined using several models for the hadronic matrix elements. We obtain the branching ratio for semileptonic. B decays to charmed states BR(B→evXc)=(11.7±0.4±1.0)%. Our result for the corresponding Kobayashi-Maskawa matrix element is |Vcb|=0.052±0.006. The model dependence of both results is included in the error. We have not observed semileptonic B decays to non-charmed mesons. Analyzing the measured electron spectrum above 2.4 GeV, where no b→c decays contribute, we find BR(B→evXu)/BR(B→evXc)<6.5% at the 90% confidence level. This corresponds to an upper limit |Vub/Vcb|<0.21.

UR - http://www.scopus.com/inward/record.url?scp=0002418835&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0002418835&partnerID=8YFLogxK

U2 - 10.1007/BF01565126

DO - 10.1007/BF01565126

M3 - Article

AN - SCOPUS:0002418835

SN - 0170-9739

VL - 42

SP - 33

EP - 48

JO - Zeitschrift für Physik C Particles and Fields

JF - Zeitschrift für Physik C Particles and Fields

IS - 1

ER -

The electron spectrum from B meson decays

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this