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MEASUREMENT OF THE EFFECTIVE B-QUARK FRAGMENTATION FUNCTION AT THE Z-RESONANCE
ALEPH Collaboration
1995
发表期刊PHYSICS LETTERS B
卷号357期号: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.
文章类型Article
摘要Using a sample of about 1.46 million hadronic Z decays collected between 1991 and 1993 with the ALEPH detector at LEP, the energy distribution of the B-0 and B-+/- mesons produced at the Z resonance is measured by reconstructing semileptonic decays B --> l nu(l)D(X) or B --> l nu(l)D*(+)(X). The charmed mesons are reconstructed through the decay modes D-0 --> K(-)pi(+), D-0, --> K(-)pi(+)pi(-)pi(+),D+ --> K(-)pi(+)pi(+), and D*(+) --> D-0 pi(+). The neutrino energy is estimated from the missing energy in the lepton hemisphere. Accounting for B* and B** production, the shape of the scaled energy distribution x(E)((b)) for mesons containing a b quark is compared to the predictions of different fragmentation models. The mean value of x(E)((b)) is found to be [x(E)((b))] = 0.715 +/- 0.007(stat) +/- 0.013(syst).
学科领域Physics
DOI10.1016/0370-2693(95)00988-W
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:A1995RV82500028
引用统计
被引频次:56[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/311005/227760
专题实验物理中心
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ALEPH Collaboration. MEASUREMENT OF THE EFFECTIVE B-QUARK FRAGMENTATION FUNCTION AT THE Z-RESONANCE[J]. PHYSICS LETTERS B,1995,357(4):#REF!.
APA ALEPH Collaboration.(1995).MEASUREMENT OF THE EFFECTIVE B-QUARK FRAGMENTATION FUNCTION AT THE Z-RESONANCE.PHYSICS LETTERS B,357(4),#REF!.
MLA ALEPH Collaboration."MEASUREMENT OF THE EFFECTIVE B-QUARK FRAGMENTATION FUNCTION AT THE Z-RESONANCE".PHYSICS LETTERS B 357.4(1995):#REF!.
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