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ID 14122
file
creator
Muta, Taizo
Sugamoto, Akio
Yang, Mao-Zhi
Yang, Ya-Dong
NDC
Physics
abstract
Motivated by recent measurements, we investigate B→ππ,Kπ decay modes in the framework of QCD improved factorization, which was recently proposed by Beneke et al. We find that all the measured branching ratios are well accommodated in the reasonable parameter space except for B→K0π0. We also discuss in detail the strong penguin contributions and the O(αs) corrections to the chirally enhanced terms. We find that the weak phase γ lies in the region 120°<γ<240°, which is mainly constrained by B→π-π+.
journal title
Physical review D
volume
Volume 62
issue
Issue 9
date of issued
2000
publisher
American Physical Society
issn
1550-7998
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2000 The American Physical Society
relation url
department
Graduate School of Science