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Observation of charmless hadronic B decays
ALEPH Collaboration
1996
发表期刊PHYSICS LETTERS B
卷号384期号:1-4页码:#REF!
通讯作者Buskulic, D (reprint author), INST NATL PHYS NUCL & PHYS PARTICULES, CNRS, PHYS PARTICULES LAB, F-74019 ANNECY LE VIEUX, FRANCE.
摘要Four candidates for charmless hadronic B decay are observed in a data sample of four million hadronic Z decays recorded by the ALEPH detector at LEP. The probability that these events come from background sources is estimated to be less than 10(-6). The average branching of weakly decaying B hadrons (a mixture of B-d(0), B-s(0) and Lambda(b) weighted by their production The average branching ratio of weakly decaying B hadrons (a mixture of B-d(0) cross sections and lifetimes, here denoted B) into two long-lived charged hadrons (pions, kaons or protons) is measured to be Br(B-->h(+)h(-))=(1.7(-0.7)(+1.0)+/-0.2)x10(-5). The relative branching fraction Br(B-d(s)(0)-->pi(+)pi(-)(K-))/Br(B-d(s)(0)-->h(+)h(-)) is measured to be 1.0(-0.3-0.1)(+0.0+0.0). In addition, branching ratio upper limits are obtained for a variety of exclusive charmless hadronic two-body decays of B hadrons.
文章类型Article
学科领域Physics
DOI10.1016/0370-2693(96)00929-X
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1996VK91300064
引用统计
被引频次:18[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/311005/227686
专题实验物理中心
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ALEPH Collaboration. Observation of charmless hadronic B decays[J]. PHYSICS LETTERS B,1996,384(1-4):#REF!.
APA ALEPH Collaboration.(1996).Observation of charmless hadronic B decays.PHYSICS LETTERS B,384(1-4),#REF!.
MLA ALEPH Collaboration."Observation of charmless hadronic B decays".PHYSICS LETTERS B 384.1-4(1996):#REF!.
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