Search for (B)over-bar(0)->Lambda(+)(c)(Lambda)over-bar(c)(-) decay at Belle

doi:10.1103/PhysRevD.77.051101

IHEP OpenIR > 实验物理中心

	Search for (B)over-bar(0)->Lambda(+)(c)(Lambda)over-bar(c)(-) decay at Belle
	Belle Collaboration
	2008
发表期刊	PHYSICAL REVIEW D
卷号	77 期号:5
通讯作者	Uchida, Y (reprint author), Grad Univ Adv Studies, Hayama, Japan.
摘要	We search for the doubly charmed baryonic decay (B) over bar (0) Lambda(+)(c)(Lambda) over bar (-)(c), in a data sample of 520 x 10(6) B (B) over bar events accumulated at the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+) e(-) collider. We find no significant signal and set an upper limit of B((B) over bar (0) -> Lambda(+)(c)(Lambda) over bar (-)(c)) < 6.2 x 10(-5) at 90% confidence level. The result is significantly below a naive extrapolation from B B(<(B)over bar> -> Xi(0)(c)(Lambda) over bar (-)(c) assuming a simple Cabibbo-suppression factor of vertical bar V(cd)/V(cs)vertical bar(2). The small branching fraction may be attributed to a suppression due to the large momentum of the baryonic decay products, which has been observed in other charmed baryonic two-body B decays.
关键词	CHARMED BARYONS NONLEPTONIC DECAYS EXCLUSIVE DECAYS CP-VIOLATION B-MESONS
学科领域	Astronomy & Astrophysics; Physics
DOI	10.1103/PhysRevD.77.051101
收录类别	SCI ; ADS ; INSPIREHEP
语种	英语
WOS类目	Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号	WOS:000254544200001
ADS Bibcode	2008PhRvD..77e1101U
ADS URL	https://ui.adsabs.harvard.edu/abs/2008PhRvD..77e1101U
ADS引文	https://ui.adsabs.harvard.edu/abs/2008PhRvD..77e1101U/citations
INSPIRE ID	757813
INSPIRE URL	https://inspirehep.net/literature/757813
引用统计	正在获取... 被引频次：8 [INSPIRE] 被引频次：12 [ADS]
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/212846
专题	实验物理中心
作者单位	中国科学院高能物理研究所
第一作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Belle Collaboration. Search for (B)over-bar(0)->Lambda(+)(c)(Lambda)over-bar(c)(-) decay at Belle[J]. PHYSICAL REVIEW D,2008,77(5).
APA	Belle Collaboration.(2008).Search for (B)over-bar(0)->Lambda(+)(c)(Lambda)over-bar(c)(-) decay at Belle.PHYSICAL REVIEW D,77(5).
MLA	Belle Collaboration."Search for (B)over-bar(0)->Lambda(+)(c)(Lambda)over-bar(c)(-) decay at Belle".PHYSICAL REVIEW D 77.5(2008).