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 complex annihilation and B → Kπ direct CP asymmetry
掲載誌名	正式名：Physical Review D
巻・号・頁	78,034037-1-034037-8頁
著者・共著者	Junegone Chay,Hsiang-nan Li,Satoshi Mishima
発行年月	2008/08/29
概要	We point out that a sizable strong phase could be generated from the penguin annihilation in the soft-collinear effective theory for B meson decays. Keeping a small scale suppressed by O(Lambda/m_b), Lambda being a hadronic scale and m_b the b quark mass, in the denominators of internal particle propagators without expansion, the resultant strong phase can accommodate the data of the B^0 -> K^-+ pi^+- direct CP asymmetry. Our study reconciles the opposite conclusions on the real or complex penguin annihilation amplitude drawn in the soft-collinear effective theory and in the perturbative QCD approach based on k_T factorization theorem.
DOI	10.1103/PhysRevD.78.034037
arXiv ID	arXiv:0711.2953
ORCIDのPut Code	71016441
PermalinkURL	http://inspirehep.net/record/768036