IHEP OpenIR  > 实验物理中心
Measurement of Singly Cabibbo Suppressed Decays Lambda(+)(c) -> p pi(+)pi(-) and Lambda(+)(c) -> pK(+)K(-)
BESIII Collaboration
2016
发表期刊PHYSICAL REVIEW LETTERS
卷号117期号:23
文章类型Article
摘要Using 567 pb(-1) of data collected with the BESIII detector at a center-of-mass energy of root s = 4.599 GeV, near the Lambda(+)(c)->(Lambda) over bar (-)(c) threshold, we study the singly Cabibbo-suppressed decays Lambda c(+) -> p pi(+) pi(-) and Lambda(+)(c) -> pK(+) K- By normalizing with respect to the Cabibbo-favored decay Lambda(+)(c)-> p pi(+)pi(-) we obtain ratios of branching fractions: [B(Lambda(+)(c) -> p pi(+)pi(-))/B(Lambda(+)(c) -> pK(-)pi(+))] = (6.70 +/- 0.48 +/- 0.25)% [B Lambda(+)(c) -> p phi)/B(Lambda(+)(c) -> pK(-)pi(+))] = (1.81 +/- 0.33 +/- 0.13)%,and [B(Lambda(+)(c) -> pK(+)K(non-phi)(-)/B(Lambda(+)(c) -> pK(-)pi(+))] (9.36 +/- 2.22 +/- 0.71)x10(-3), where the uncertainties are statistical and systematic, respectively. The absolute branching fractions are also presented. Among these measurements, the decay Lambda(+)(c) -> p pi(+)pi(-) is observed for the first time, and the precision of the branching fraction for Lambda(+)(c) -> pK(+)K(non-phi)(-) and Lambda(+)(c) -> p phi is significantly improved.
DOI10.1103/PhysRevLett.117.232002
关键词[WOS]HELICITY-COUPLING AMPLITUDES ; CHARMED BARYONS ; NONLEPTONIC DECAYS ; WEAK DECAYS ; QUARK ; MODEL
语种英语
WOS记录号WOS:000389032600001
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260890
专题实验物理中心
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
BESIII Collaboration. Measurement of Singly Cabibbo Suppressed Decays Lambda(+)(c) -> p pi(+)pi(-) and Lambda(+)(c) -> pK(+)K(-)[J]. PHYSICAL REVIEW LETTERS,2016,117(23).
APA BESIII Collaboration.(2016).Measurement of Singly Cabibbo Suppressed Decays Lambda(+)(c) -> p pi(+)pi(-) and Lambda(+)(c) -> pK(+)K(-).PHYSICAL REVIEW LETTERS,117(23).
MLA BESIII Collaboration."Measurement of Singly Cabibbo Suppressed Decays Lambda(+)(c) -> p pi(+)pi(-) and Lambda(+)(c) -> pK(+)K(-)".PHYSICAL REVIEW LETTERS 117.23(2016).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
20161243.pdf(279KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[BESIII Collaboration]的文章
百度学术
百度学术中相似的文章
[BESIII Collaboration]的文章
必应学术
必应学术中相似的文章
[BESIII Collaboration]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。