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	Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays
	Won, E.22; Ko, B. R.22; Adachi, I.10; Aihara, H.52; Arinstein, K.1,2; Asner, D. M.39; Aushev, T.17; Bakich, A. M.46; Barberio, E.28; Bay, A.24
刊名	Physical review letters
	2011-11-21
卷号	107期号:22页码:6
ISSN号	0031-9007
DOI	10.1103/physrevlett.107.221801
通讯作者	Won, e.()
英文摘要	We report the first observation of the doubly cabibbo-suppressed decays d+ -> k+eta(()'()) using a 791 fb(-1) data sample collected with the belle detector at the kekb asymmetric-energy e(+)e(-) collider. the ratio of the branching fractions of doubly cabibbo-suppressed relative to singly cabibbo-suppressed d+ -> pi(+)eta(()'()) decays are b(d+ -> k+eta) / b(d+ -> pi(+)eta) =(3.06 +/- 0.43 +/- 0.14)% and b(d+ -> k+eta')/b(d+->pi(+)eta') = (3.77 +/- 0.39 +/- 0.10)%. from these, we find that the relative final-state phase difference between the tree and annihilation amplitudes in d+ decays, delta(ta), is (72 +/- 9)degrees or (288 +/- 9)degrees. we also report the most precise measurements of cp asymmetries to date: a(cp)(d+->pi+eta) = (+1.74 +/- 1.13 +/- 0.19)% and a(cp)(d+->pi+eta') = (-0.12 +/- 1.12 +/- 0.17)%.
WOS关键词	BELLE
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000297292000003
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176036
专题	高能物理研究所
通讯作者	Won, E.
作者单位	1.Budker Inst Nucl Phys SB RAS, Novosibirsk 630090, Russia 2.Novosibirsk State Univ, Novosibirsk 630090, Russia 3.Charles Univ Prague, Fac Math & Phys, Prague, Czech Republic 4.Univ Cincinnati, Cincinnati, OH 45221 USA 5.Univ Giessen, Giessen, Germany 6.Gifu Univ, Gifu, Japan 7.Gyeongsang Natl Univ, Chinju, South Korea 8.Hanyang Univ, Seoul 133791, South Korea 9.Univ Hawaii, Honolulu, HI 96822 USA 10.High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan
推荐引用方式 GB/T 7714	Won, E.,Ko, B. R.,Adachi, I.,et al. Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays[J]. Physical review letters,2011,107(22):6.
APA	Won, E..,Ko, B. R..,Adachi, I..,Aihara, H..,Arinstein, K..,...&Zyukova, O..(2011).Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays.Physical review letters,107(22),6.
MLA	Won, E.,et al."Observation of d+ -> k+eta(()'()) and search for cp violation in d+ -> pi(+)eta(()'()) decays".Physical review letters 107.22(2011):6.

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