Abstract
The production ofJ/ψ inB meson decays has been measured on the Γ(4S) resonance using the Crystal Ball detector at thee + e − storage ring DORIS II. TheJ/ψ is identified by itse + e − decay mode. We obtain a branching ratio of BR(B→J/ψX)=(1.12±0.33±0.25)% in good agreement with theoretical predictions based on color suppression. TheJ/ψ momentum distribution is observed to be peaked at high values. This implies a substantial contribution from directB meson decays to theJ/ψ. In addition upper limits onJ/ψ production in Γ(1S) and Γ(2S) decays and in continuum processes are determined.
Similar content being viewed by others
References
E.D. Bloom, C.W. Peck: Annu. Rev. Nucl. Part. Sci. 33 (1983) 143
K. Wachs et al.: Z. Phys. C — Particles and Fields 42 (1989) 33; K. Wachs: Ph. D. thesis, University of Hamburg, DESY-F31-88-01 (1988), unpublished
W. Maschmann: Ph. D. thesis, University of Hamburg, DESY-F31-89-02 (1989), unpublished
G.C. Fox, S. Wolfram: Phys. Rev. Lett. 41 (1978) 1581; G.C. Fox, S. Wolfram: Nucl. Phys. B149 (1979) 413
H. Fritzsch, K.-H. Streng: Phys. Lett. 77B (1978) 299
T. Sjöstrand: Comp. Phys. Commun. 39 (1986) 347; T. Sjöstrand, M. Bengtsson: Comp. Phys. Commun. 43 (1987) 367
R. Ford, W. Nelson: SLAC-210 (1978), unpublished
H. Fesefeldt: Aachen preprint PITHA 85/02 (1985), unpublished
Z. Jakubowski, M. Kobel: A verified upgrade of the GHEISHA 6/7 simulation of particle interactions, DESY 89-165 (1989)
Particle Data Group: Phys. Lett. 204B (1988) 1
R. Giles et al.: Phys. Rev. D30 (1984) 2279; P. Haas et al.: Phys. Rev. Lett. 55 (1985) 1248; M.S. Alam et al.: Phys. Rev. D34 (1986) 3279
Y. Kuroda: CLNS 89/946, Contribution to the 1989 Intl. Symposium on Lepton-Photon Interactions, Stanford, 1989, and private communication
H. Albrecht et al.: Phys. Lett. 162B (1985) 395; H. Albrecht et al.: Phys. Lett. 199B (1987) 451
H. Fritzsch: Phys. Lett. 86B (1979) 343, 164
T. de Grand, D. Toussaint: Phys. Lett. 89B (1980) 256; M.B. Wise: Phys. Lett. 89B (1980) 229
J.H. Kühn, S. Nussinov, R. Rückl: Z. Phys. C — Particles and Fields 5 (1980) 117; J.J. Kühn, R. Rückl: Phys. Lett. 135B (1984) 477
P.H. Cox, S. Hovater, S.T. Jones, L. Clavelli: Phys. Rev. D32 (1985) 1157; S.T. Jones, P.H. Cox: Phys. Rev. D35 (1987) 1064
L. Lyons: Statistics for nuclear and particle physicists, Cambrige: Cambridge University Press 1986
R. Barbieri, M. Caffo, E. Remiddi: Phys. Lett. 83B (1979) 345
K.-H. Streng: Habilitationsschrift, University of Munich (1986), unpublished
I.I. Bigi, S. Nussinov: Phys. Lett. 82B (1979) 281
B. Niczyporuk et al.: Z. Phys. C — Particles and Fields 17 (1983) 197
R. Fulton et al.: Phys. Lett. 224B (1989) 445
H. Fritzsch: Phys. Lett. 67B (1977) 217; H. Fritzsch, J.H. Kühn: Phys. Lett. 90B (1980) 164
G.L. Kane, J.P. Leveille, D.M. Scott: Phys. Lett. 85B (1979) 115
W. Keung: Phys. Rev. D23 (1981) 2072; J.H. Kühn, H. Schneider: Phys. Rev. D24 (1981) 2996; J.H. Kühn, H. Schneider: Z. Phys. C — Particles and Fields 11 (1981) 263
J. Burmester et al.: Phys. Lett. 68B (1977) 283
F. Ferrarotto et al.: University of Rome internal note 923 (1988), unpublished
G. Wormser et al.: Phys. Rev. D38 (1988) 1001
Author information
Authors and Affiliations
Consortia
Additional information
Supported by the U.S. Department of Energy, contract No. DE-AC03-81ER40050 and by the National Science Foundation, grant No. PHY75-22980
Supported by the National Science Foundation, grant No. PHY85-12145
Supported by the U.S. Department of Energy, contract No. DE-AC02-76ER03066
Supported by the German Bundesministerium für Forschung und Technologie, contract No. 054 ER 12P(5)
Supported by the German Bundesministerium für Forschung und Technologie, contract N. 054 HH 11P(7) and by the Deutsche Forschungsgemeinschaft
Supported by the U.S. Department of Energy, contract No. DE-AC02-76ER03064
Supported by FOM-ZWO
Supported by the U.S. Department of Energy, contract No. DE-AC02-76ER03072 and by the National Science Foundation, grant No. PHY82-08761
Supported by the U.S. Department of Energy, contract No. DE-AC03-76SF00326 and by the National Science Foundation, grant No. PHY81-07396
Supported by the U.S. Department of Energy, contract No. DE-AC03-76SF00515
Supported by the German Bundesministerium für Forschung und Technologie, contract No. 054 WU 11P(1)
Rights and permissions
About this article
Cite this article
Crystal Ball Collaboration., Maschmann, W., Antreasyan, D. et al. InclusiveJ/ψ production in decays ofB mesons. Z. Phys. C - Particles and Fields 46, 555–562 (1990). https://doi.org/10.1007/BF01560256
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01560256