| EVIDENCE FOR B-BARYONS IN Z-DECAYS |
| ALEPH Collaboration
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| 1992
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发表期刊 | PHYSICS LETTERS B
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卷号 | 278期号:1-2页码:#REF! |
通讯作者 | DECAMP, D (reprint author), CNRS,INST NATL PHYS NUCL & PHYS PARTICULES,PHYS PARTICULES LAB,F-74019 ANNECY LE VIEUX,FRANCE.
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摘要 | In 160 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of LAMBDA-l- and LAMBDA-l+ combinations have been measured. The observed excess of LAMBDA-l- over LAMBDA-l+ of 53 +/- 13 is interpreted as evidence for b baryons and their semileptonic decay. Assuming that three body decay processes such as LAMBDA(b) --> LAMBDA(c)+ l- vBAR dominate the semileptonic decay of b baryons, this excess corresponds to a product branching ratio BR(b --> LAMBDA(b)).BR(LAMBDA(b) --> LAMBDA(c)+ l- vBAR).BR(LAMBDA(c)+ --> LAMBDA-X) = (0.95 +/- 0.22 (stat.) +/- 0.21 (syst.))%, where LAMBDA(b) and LAMBDA(c)+ denote the bottom and charm baryons respectively. |
文章类型 | Article
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学科领域 | Physics
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DOI | 10.1016/0370-2693(92)90736-N
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收录类别 | SCI
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WOS类目 | Physics, Multidisciplinary
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WOS记录号 | WOS:A1992HN24700037
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://ir.ihep.ac.cn/handle/311005/226955
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专题 | 实验物理中心
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推荐引用方式 GB/T 7714 |
ALEPH Collaboration. EVIDENCE FOR B-BARYONS IN Z-DECAYS[J]. PHYSICS LETTERS B,1992,278(1-2):#REF!.
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APA |
ALEPH Collaboration.(1992).EVIDENCE FOR B-BARYONS IN Z-DECAYS.PHYSICS LETTERS B,278(1-2),#REF!.
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MLA |
ALEPH Collaboration."EVIDENCE FOR B-BARYONS IN Z-DECAYS".PHYSICS LETTERS B 278.1-2(1992):#REF!.
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文件名:
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2261.pdf
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Adobe PDF
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