Three-scale factorization theorem and effective field theory: Analysis of nonleptonic heavy meson decays

Chia Hung V. Chang, Hsiang nan Li

研究成果: 雜誌貢獻期刊論文同行評審

157 引文 斯高帕斯(Scopus)

摘要

We develop a perturbative QCD factorization theorem which is compatible with effective field theory. The factorization involves three scales: an infrared cutoff of order [Formula presented] a hard scale of the order of the [Formula presented] meson mass, and an ultraviolet cutoff of the order of the [Formula presented] boson mass. Our approach is renormalization-group invariant and moderates the scale-dependent problem in effective field theory. Employing this formalism with nonfactorizable contributions included, we clarify the controversy over the BSW parameters [Formula presented] for charm and bottom decays.

原文英語
頁(從 - 到)5577-5580
頁數4
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
55
發行號9
DOIs
出版狀態已發佈 - 1997

ASJC Scopus subject areas

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

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