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	Resolution to the B → πK puzzle
掲載誌名	正式名：Physical Review D
巻・号・頁	72,114005-1-114005-21頁
著者・共著者	Hsiang-nan Li,Satoshi Mishima,A.I. Sanda
発行年月	2005/12/09
概要	We calculate the important next-to-leading-order contributions to the B -> pi K, pi pi decays from the vertex corrections, the quark loops, and the magnetic penguins in the perturbative QCD approach. It is found that the latter two reduce the leading-order penguin amplitudes by about 10%, and modify only the B -> pi K branching ratios. The main effect of the vertex corrections is to increase the small color-suppressed tree amplitude by a factor of 3, which then resolves the large difference between the direct CP asymmetries of the B^0 -> pi^\mp K^\pm and B^\pm -> pi^0 K^\pm modes. The puzzle from the large B^0 -> pi^0 pi^0 branching ratio still remains.
DOI	10.1103/PhysRevD.72.114005
arXiv ID	hep-ph/0508041
ORCIDのPut Code	71016413
PermalinkURL	http://inspirehep.net/record/688942