Strange b baryon production and lifetime in Z decays
ALEPH Collaboration
刊名PHYSICS LETTERS B
1996
卷号384期号:1-4页码:#REF!
学科分类Physics
DOI10.1016/0370-2693(96)00925-2
通讯作者Buskulic, D (reprint author), INST NATL PHYS NUCL & PHYS PARTICULES, CNRS, PHYS PARTICULES LAB, F-74019 ANNECY LE VIEUX, FRANCE.
文章类型Article
英文摘要In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Xi(b) is performed with a study of Xi-lepton correlations. Forty-four events with same sign Xi(-)l(-) combinations are found whereas 8.4 are expected based on the rate of opposite sign Xi(-)l(+) combinations. This significant excess is interpreted as evidence for Xi(b) semileptonic decays. The measured product branching ratio is Br(b-->Xi(b))xBr(Xi(b)-->X(c)Xl(-)<(nu)over bar (l)>)xBr(X(c)-->Xi(-)X')=(5.4+/-1.1(stat)+/-0.8(syst))x10(-4) per lepton species, averaged over electrons and muons, with X(c) a charmed baryon. The Xi(b) lifetime is measured to be tau(Xi b)=1.35(-0.28)(+0.37)(stat)(-0.17)(+0.15)(syst) ps.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
WOS记录号WOS:A1996VK91300062
引用统计
被引频次:37[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227661
专题中国科学院高能物理研究所_实验物理中心_期刊论文
推荐引用方式
GB/T 7714
ALEPH Collaboration. Strange b baryon production and lifetime in Z decays[J]. PHYSICS LETTERS B,1996,384(1-4):#REF!.
APA ALEPH Collaboration.(1996).Strange b baryon production and lifetime in Z decays.PHYSICS LETTERS B,384(1-4),#REF!.
MLA ALEPH Collaboration."Strange b baryon production and lifetime in Z decays".PHYSICS LETTERS B 384.1-4(1996):#REF!.
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
4079.pdf(1197KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 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
[ALEPH Collaboration]的文章
百度学术
百度学术中相似的文章
[ALEPH Collaboration]的文章
必应学术
必应学术中相似的文章
[ALEPH Collaboration]的文章
相关权益政策
暂无数据
收藏/分享
文件名: 4079.pdf
格式: Adobe PDF
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。