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Study of the fragmentation of b quarks into B mesons at the Z peak
ALEPH Collaboration
2001
发表期刊PHYSICS LETTERS B
卷号512期号:1-2页码:#REF!
通讯作者Heister, A (reprint author), Rhein Westfal TH Aachen, Inst Phys, D-52056 Aachen, Germany.
摘要The fragmentation of b quarks into B mesons is studied with four million hadronic Z decays collected by the ALEPH experiment during the years 1991-1995. A semi-exclusive reconstruction of B --> lvD((*)) decays is performed, by combining lepton candidates with fully reconstructed D((*)) mesons while the neutrino energy is estimated from the missing energy of the event. The mean value of x(B)(wd), the energy of the weakly-decaying B meson normalised to the beam energy, is found to be (x(B)(wd)) = 0.716 +/- 0.006 (stat) +/- 0.006 (syst), using a model-independent method; the corresponding value for the energy of the leading B meson is (x(B)(L)) = 0.736 +/- 0.006 (stat) +/- 0.006 (syst). The reconstructed spectra are compared with different fragmentation models. (C) 2001 Published by Elsevier Science B.V.
文章类型Article
学科领域Physics
DOI10.1016/S0370-2693(01)00690-6
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000169809700005
引用统计
被引频次:108[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/311005/225618
专题实验物理中心
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ALEPH Collaboration. Study of the fragmentation of b quarks into B mesons at the Z peak[J]. PHYSICS LETTERS B,2001,512(1-2):#REF!.
APA ALEPH Collaboration.(2001).Study of the fragmentation of b quarks into B mesons at the Z peak.PHYSICS LETTERS B,512(1-2),#REF!.
MLA ALEPH Collaboration."Study of the fragmentation of b quarks into B mesons at the Z peak".PHYSICS LETTERS B 512.1-2(2001):#REF!.
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