ミシマ　サトシ   MISHIMA Satoshi   三島　智    所属   埼玉医科大学  医学部 教養教育    職種   専任講師
論文種別	学術雑誌(原著)
言語種別	英語
査読の有無	査読あり
表題	Possible resolution of the B → ππ, πK puzzles
掲載誌名	正式名：Physical Review D ISSNコード：2470-0010/2470-0029
出版社	AMER PHYSICAL SOC
巻・号・頁	83,034023-1-034023-10頁
著者・共著者	Hsiang-nan Li,Satoshi Mishima
発行年月	2011/02/22
概要	We show that there exist uncanceled soft divergences in the k(T) factorization for nonfactorizable amplitudes of two-body nonleptonic B meson decays, similar to those identified in hadron hadroproduction. These divergences can be grouped into a soft factor using the eikonal approximation, which is then treated as an additional nonperturbative input in the perturbative QCD formalism. Viewing the special role of the pion as a q (q) over bar bound state and as a pseudo Nambu-Goldstone boson, we postulate that the soft effect associated with it is significant. This soft factor enhances the nonfactorizable color-suppressed tree amplitudes, such that the branching ratios B(pi(0)pi(0)) and B(pi(0)p(0)) are increased under the constraint of the Bd(p(0)p(0)) data, the difference between the direct CP asymmetries A(CP)(pi(+) K-+/-) and A(CP)(pi(0) K-+/-) is enlarged, and the mixing-induced CP asymmetry S-pi 0KS is reduced. Namely, the known pi pi and pi K puzzles can be resolved simultaneously.
DOI	10.1103/PhysRevD.83.034023
arXiv ID	arXiv:0901.1272
ORCIDのPut Code	71016439
PermalinkURL	http://inspirehep.net/record/810689