Il Nuovo Cimento A (1971-1996)

, Volume 108, Issue 9, pp 1143–1149 | Cite as

Remarks on the quark-diagram description of two-body non-leptonic B-meson decays

  • Zhi-Zhong Xing


To lowest-order weak interactions in the standard model, we point out that a complete graph description of two-body mesonic B-(or D-) decays needs ten topologically different quark diagrams. The two-body baryonic B-decays can be illustrated in terms of five diagrams. We remarks a variety of features of the graph language. Some pure channels of mesonic B-decays, which can be used to test the quark-diagram scheme, are discussed in some detail.

PACS 12.90

Miscellaneous theoretical ideas and models 

PACS 14.40.Jz

Charmed and other heavy mesons and meson resonances 

PACS 13.25

Hadronic decays of mesons 


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  1. [1]
    Particle Data Group (M. Aguilar-Benitez et al.),Phys. Rev. D,50 (1994) 1173.ADSCrossRefGoogle Scholar
  2. [2]
    Zeppenfeld D.,Z. Phys. C,8 (1981) 77;Khodiamirian A.,Sov. J. Nucl. Phys.,30 (1979) 425;Savage M. andWise M.,Phys. Rev. D,39 (1989) 3346.ADSCrossRefGoogle Scholar
  3. [3]
    For a review see:Chau L. L.,Phys. Rep.,95 (1983) 1:Chau L. L., Cheng H. Y., Sze W. K., Yao H. andTseng B.,Phys. Rev. D,43 (1991) 2176.ADSCrossRefGoogle Scholar
  4. [4]
    Deshpande N. G. andHe X. G.,Phys. Rev. Lett.,74 (1995) 26.ADSCrossRefGoogle Scholar
  5. [5]
    Fritzsch H. andMinkowski P.,Phys. Lett. B,90 (1980) 445;Phys. Rep.,73 (1981) 67;Bander M., Silverman D. andSoni A.,Phys. Rev. Lett.,44 (1980) 7;Bernreuther B., Nachtmann O. andStech B.,Z. Phys. C,4 (1980) 257.ADSGoogle Scholar
  6. [6]
    Bauer M., Stech B andWirbel M.,Z. Phys. C,34 (1987) 103;Neubert M., Rieckert V., Stech B. andXu Q. P., inReview Volume on Heavy Flavours, edited byA. J. Buras andM. Lindner (World Scientific, Singapore) 1992, p. 286.ADSCrossRefGoogle Scholar
  7. [7]
    Du D. andXing Z. Z.,Z. Phys. C,55 (1992) 471;Xing Z. Z., PhD Thesis, Institute of High Energy Physics, Academia Sinica, Beijing (1993).ADSCrossRefGoogle Scholar
  8. [8]
    Kramer G. andPalmer W. F.,Phys. Rev. D,45 (1992) 193; and references therein.ADSCrossRefGoogle Scholar
  9. [9]
    Buras A. J., Gérard J. M. andRückl R. Nucl. Phys. B,268 (1986) 16;Blok B. andShifman M.,Nucl. Phys. B,389 (1993) 534.ADSCrossRefGoogle Scholar
  10. [10]
    Du D. andXing Z. Z.,Phys. Rev. D,48 (1993) 3400;Bijnens J. andHoogeveen F.,Phys. Lett. B,283 (1992) 434.ADSCrossRefGoogle Scholar
  11. [11]
    Bigi I. I.,Z. Phys. C,51 (1991) 267;Gronau M. andLondon D.,Phys. Lett. B,253 (1991) 483;Dunietz I.,Phys. Lett. B,270 (1991) 75.CrossRefGoogle Scholar
  12. [12]
    Fritzsch H., Wu D. D. andXing Z. Z.,Phys. Lett. B,328 (1994) 477;Xing Z. Z.,Phys. Rev. D,50 (1994) R2957;Chan A. H. andXing Z. Z., LMU Preprint.ADSCrossRefGoogle Scholar
  13. [13]
    Buras A. J. et al., Nucl. Phys. B,370 (1992) 69.ADSCrossRefGoogle Scholar
  14. [14]
    Gérard J. M. andHou W. S.,Phys. Rev. D,43 (1991) 2909;Du D. andXing Z. Z.,Phys. Rev. D,48 (1993) 4155.ADSCrossRefGoogle Scholar
  15. [15]
    Wolfenstein L.,Phys. Rev. D,43 (1991) 151.ADSCrossRefGoogle Scholar

Copyright information

© Società Italiana di Fisica 1995

Authors and Affiliations

  1. 1.Sektion Physik, Theoretische PhysikUniversität MünchenMunichGermany

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