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	Evidence for b -> k eta 'gamma decays at belle
	Wedd, R.1; Adachi, I.9; Aihara, H.41; Arinstein, K.2,31; Aulchenko, V.2,31; Bakich, A. M.38; Balagura, V.13; Barberio, E.1; Bay, A.19; Belous, K.12
刊名	Physical review d
	2010-06-28
卷号	81期号:11页码:7
ISSN号	1550-7998
DOI	10.1103/physrevd.81.111104
通讯作者	Wedd, r.()
英文摘要	We present the results of a search for the radiative decay b -> k eta 'gamma and find evidence for b(+) -> k(+)eta 'gamma decays at the 3.3 standard deviation level with a partial branching fraction of (3.6 +/- 1.2 +/- 0.4) x 10(-6), where the first error is statistical and the second systematic. this measurement is restricted to the region of combined k eta ' invariant mass less than 3.4 gev/c(2). a 90% confidence level upper limit of 6.4 x 10(-6) is obtained for the partial branching fraction of the decay b(0) -> k(0)eta 'gamma in the same k eta ' invariant mass region. these results are obtained from a 605 fb(-1) data sample containing 657 x 10(6) b (b) over bar pairs collected at the y(4s) resonance with the belle detector at the kekb asymmetric-energy e(+)e(-) collider.
WOS关键词	HIGH-ENERGY-PHYSICS ; CP VIOLATION ; ETA ; DETECTOR
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000279268300001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2175975
专题	高能物理研究所
通讯作者	Wedd, R.
作者单位	1.Univ Melbourne, Sch Phys, Melbourne, Vic 3010, Australia 2.Budker Inst Nucl Phys, Novosibirsk 630090, Russia 3.Chiba Univ, Chiba, Japan 4.Univ Cincinnati, Cincinnati, OH 45221 USA 5.Kosciuszko Cracow Univ Technol, Krakow, Poland 6.Grad Univ Adv Studies, Hayama, Japan 7.Hanyang Univ, Seoul 133791, South Korea 8.Univ Hawaii, Honolulu, HI 96822 USA 9.High Energy Accelerator Res Org KEK, Tsukuba, Ibaraki, Japan 10.Hiroshima Inst Technol, Hiroshima, Japan
推荐引用方式 GB/T 7714	Wedd, R.,Adachi, I.,Aihara, H.,et al. Evidence for b -> k eta 'gamma decays at belle[J]. Physical review d,2010,81(11):7.
APA	Wedd, R..,Adachi, I..,Aihara, H..,Arinstein, K..,Aulchenko, V..,...&Zyukova, O..(2010).Evidence for b -> k eta 'gamma decays at belle.Physical review d,81(11),7.
MLA	Wedd, R.,et al."Evidence for b -> k eta 'gamma decays at belle".Physical review d 81.11(2010):7.

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