PQCD study of the [Formula Presented] and [Formula Presented] controversy in inclusive [Formula Presented] decays

Chia Hung V. Chang, We Fu Chang

研究成果: 雜誌貢獻文章同行評審

摘要

We calculate the semileptonic branching fraction and charm yield from inclusive (Formula presented) 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 (Formula presented) is enhanced, and a lower (Formula presented) is obtained without increasing (Formula presented) This conclusion differs from the usual one, where the (Formula presented) mode is increased. Our result for the (Formula presented) meson lifetime is also consistent with the data.

原文英語
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
58
發行號9
DOIs
出版狀態已發佈 - 1998 九月 30

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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