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Measurement of the absolute branching fractions B -> D pi, D-*pi, D-**pi with a missing mass method
BaBar Collaboration
2006
发表期刊PHYSICAL REVIEW D
卷号74期号:11
通讯作者Aubert, B (reprint author), CNRS, Lab Phys Particules, IN2P3, F-74941 Annecy Le Vieux, France.
摘要We present branching fraction measurements of charged and neutral B decays to D pi(-), D-*pi(-), and "D-**"pi(-) with a missing mass method, based on a sample of 231x10(6) Upsilon(4S)-> B (B) over bar pairs collected by the BABAR detector at the PEP-II e(+)e(-) collider. One of the B mesons is fully reconstructed and the other one decays to a reconstructed charged pi and a companion charmed meson identified by its recoil mass, inferred by kinematics. Here "D-**" refers to the sum of all the nonstrange charm meson states with masses in the range 2.2-2.8 GeV/c(2). We measure the branching fractions: B(B--> D-0 pi(-))=(4.49 +/- 0.21 +/- 0.23)x10(-3), B(B--> D-*0 pi(-))=(5.13 +/- 0.22 +/- 0.28)x10(-3), B(B-->"D-**0"pi(-))=(5.50 +/- 0.52 +/- 1.04)x10(-3), B((B) over bar (0)-> D+pi(-))=(3.03 +/- 0.23 +/- 0.23)x10(-3), B((B) over bar (0)-> D*+pi(-))=(2.99 +/- 0.23 +/- 0.24)x10(-3), B((B) over bar (0)->"D**+"pi(-))=(2.34 +/- 0.65 +/- 0.88)x10(-3), and their ratios.
关键词NONLEPTONIC DECAYS FINAL-STATES B-MESONS FACTORIZATION CHARM QCD
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.74.111102
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000243170500002
引用统计
被引频次:2[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/311005/212769
专题实验物理中心
作者单位中国科学院高能物理研究所
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BaBar Collaboration. Measurement of the absolute branching fractions B -> D pi, D-*pi, D-**pi with a missing mass method[J]. PHYSICAL REVIEW D,2006,74(11).
APA BaBar Collaboration.(2006).Measurement of the absolute branching fractions B -> D pi, D-*pi, D-**pi with a missing mass method.PHYSICAL REVIEW D,74(11).
MLA BaBar Collaboration."Measurement of the absolute branching fractions B -> D pi, D-*pi, D-**pi with a missing mass method".PHYSICAL REVIEW D 74.11(2006).
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