1/n Expansion for Exclusive and Inclusive Charm Decays
(1986) Nuclear Physics, Section B — Vol. 268, n° 1, p. 16-48 (1986)
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- Abstract
- We systematically apply the 1/N expansion (N being the number of colours) to exclusive and inclusive charm decays and develop a diagrammatic language in which the leading contributions can be clearly identified and calculated. Keeping only the leading terms in 1/N makes the usual approach compatible with the data on exclusive decays and gives τ(D+)/τ(D0) ≈ 02 and BSL(D0) ≈ 10%. 0382 1537 V 3 We also show that the recent analysis of exclusive charm decays of Bauer and Stech can be justified to a certain extent in this approach. The possible non-leading effects are briefly discussed.
- Affiliations
Munich, Max Planck Inst. Munich U. & Munich, Max Planck Inst.
Citations
Buras, A. J., Gérard, J.-M., & Ruckl, R. (1986). 1/n Expansion for Exclusive and Inclusive Charm Decays. Nuclear Physics, Section B, 268(1), 16-48. https://doi.org/10.1016/0550-3213(86)90200-2 (Original work published 1986)