QCD factorization for B{r_arrow}PP
Journal Article
·
· Physical Review D
In this work, we give a detailed discussion for QCD factorization involved in the complete chirally enhanced power corrections in the heavy quark limit for B decays to two light pseudoscalar mesons, and present some detailed calculations of radiative corrections at the order of {alpha}{sub s}. We point out that the infrared finiteness of the vertex corrections in the chirally enhanced power corrections requires twist-3 light-cone distribution amplitudes (LCDAs) of the light pseudoscalar symmetric. However, even in the symmetric condition, there is also a logarithmic divergence from the end points of the twist-3 LCDAs in the hard spectator scattering. We point out that the decay amplitudes of B{r_arrow}PP predicted by QCD factorization are really free of the renormalization scale dependence, at least at the order of {alpha}{sub s}. At last, we briefly compare the QCD factorization with the generalized factorization and PQCD method.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204503
- Journal Information:
- Physical Review D, Journal Name: Physical Review D Journal Issue: 1 Vol. 64; ISSN 0556-2821
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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