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Measurement of branching fractions for B -> X c1(2) K (K*) at Belle
Belle Collaboration
2006
发表期刊PHYSICS LETTERS B
卷号634期号:2-3页码:#REF!
通讯作者Soni, T (reprint author), Panjab Univ, High Energy Phys Grp, Dept Phys, Belle Grp, Chandigarh 160014, India.
摘要We have measured the branching fractions for the exclusive decay modes B -> chi(c1(2)) K(K*) using a 140 fb(-1) data sample collected by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured branching fractions for B+ -> chi(c1) K+, B-0, chi(c1) K-0, B-0 -> chi(c1) K*(0) and B+ -> chi(c1) K*(+) decay modes are (4.5 +/- 0.2 +/- 0.5) x 10(-4), (3.5 +/- 0.3 +/- 0.5) x 10(-4), (3.1 +/- 0.3 +/- 0.7) x 10(-4) and (4.1 +/- 0.6 +/- 0.9) x 10(-4), respectively, where the first error is statistical and the second error is systematic. We do not observe statistically significant signals for the B -> chi(c2) K(K*) decay modes and set upper limits at the 90% confidence level. We also study the helicity distribution for B -> chi(c1) K* decay mode and show that the longitudinal polarization component is dominant. (c) 2006 Elsevier B.V. All rights reserved.
文章类型Article
关键词B-meson charmonium branching fractions polarization
学科领域Physics
DOI10.1016/j.physletb.2006.01.013
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000235859800012
引用统计
被引频次:10[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/311005/226560
专题实验物理中心
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Belle Collaboration. Measurement of branching fractions for B -> X c1(2) K (K*) at Belle[J]. PHYSICS LETTERS B,2006,634(2-3):#REF!.
APA Belle Collaboration.(2006).Measurement of branching fractions for B -> X c1(2) K (K*) at Belle.PHYSICS LETTERS B,634(2-3),#REF!.
MLA Belle Collaboration."Measurement of branching fractions for B -> X c1(2) K (K*) at Belle".PHYSICS LETTERS B 634.2-3(2006):#REF!.
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