PQCD study of the BSL and nc controversy in inclusive B decays

Chia Hung V. Chang*, Darwin Chang, We Fu Chang, Hsiang Nan Li, Hoi Lai Yu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


We calculate the semileptonic branching fraction and charm yield from inclusive B decays using the formalism of perturbative QCD. For nonleptonic decays, we employ the modified factorization theorem, in which Wilson coefficients evolve with the characteristic scales of the decay modes. It is found that the decay rate of the single-charm mode b→cūd is enhanced, and a lower BSL is obtained without increasing nc . This conclusion differs from the usual one, where the b-→cc̄s mode is increased. Our result for the B meson lifetime is also consistent with the data.

Original languageEnglish
Article number094019
Pages (from-to)940191-940196
Number of pages6
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number9
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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