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Partial wave analysis of J/psi -> p(p)over-bar pi(0)
BES Collaboration
2009
发表期刊PHYSICAL REVIEW D
卷号80期号:5页码:52004
通讯作者Ablikim, M (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
文章类型Article
摘要Using a sample of 58 million J/psi events collected with the BESII detector at the BEPC, more than 100 000 J/psi -> p (p) over bar pi(0) events are selected, and a detailed partial wave analysis is performed. The branching fraction is determined to be Br(J/psi -> p (p) over bar pi(0)) = (1.33 +/- 0.02 +/- 0.11) x 10(-3). A long-sought missing N*, first observed in J/psi -> p (n) over bar pi(-), is observed in this decay too, with mass and width of 2040(-4)(+3) +/- 25 MeV/c(2) and 230(-8)(+8) +/- 52 MeV/c(2), respectively. Its spin-parity favors 3+/2. The masses, widths, and spin parities of other N* states are obtained as well.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.80.052004
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000270384900015
引用统计
被引频次:19[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/311005/227911
专题实验物理中心
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BES Collaboration. Partial wave analysis of J/psi -> p(p)over-bar pi(0)[J]. PHYSICAL REVIEW D,2009,80(5):52004.
APA BES Collaboration.(2009).Partial wave analysis of J/psi -> p(p)over-bar pi(0).PHYSICAL REVIEW D,80(5),52004.
MLA BES Collaboration."Partial wave analysis of J/psi -> p(p)over-bar pi(0)".PHYSICAL REVIEW D 80.5(2009):52004.
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