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Study of the decay mechanism for B+ -> p(p)over-barK(+) and B+ -> p(p)over-bar pi(+)
Belle Collaboration
2008
发表期刊PHYSICS LETTERS B
卷号659期号:1-2页码:#REF!
通讯作者Wei, JT (reprint author), Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan.
文章类型Article
摘要We study the characteristics of the low mass p (p) over bar enhancements near threshold in the three-body decays B+ -> p (p) over barK(+) and B+ -> p (p) over bar pi(+). We observe that the proton polar angle distributions in the p (p) over bar helicity frame in the two decays have the opposite polarity, and measure the forward-backward asymmetries as a function of the p mass for the p (p) over barK(+) mode. We also search for the intermediate two-body decays, B+ -> (p) over bar Delta(++) and B+ -> p (Delta) over bar (0), and set upper limits on their branching fractions. These results are obtained from a 414 fb(-1) data sample that contains 449 x 10(6) B (B) over bar events collected near the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. (c) 2007 Elsevier B.V. All rights reserved.
学科领域Physics
DOI10.1016/j.physletb.2007.11.063
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000252878000012
引用统计
被引频次:38[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/311005/226005
专题实验物理中心
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Belle Collaboration. Study of the decay mechanism for B+ -> p(p)over-barK(+) and B+ -> p(p)over-bar pi(+)[J]. PHYSICS LETTERS B,2008,659(1-2):#REF!.
APA Belle Collaboration.(2008).Study of the decay mechanism for B+ -> p(p)over-barK(+) and B+ -> p(p)over-bar pi(+).PHYSICS LETTERS B,659(1-2),#REF!.
MLA Belle Collaboration."Study of the decay mechanism for B+ -> p(p)over-barK(+) and B+ -> p(p)over-bar pi(+)".PHYSICS LETTERS B 659.1-2(2008):#REF!.
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