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Evidence for kappa meson production in J/psi ->(K)over-bar*(892)K-0(+)pi(-) process
BES Collaboration
2006
发表期刊PHYSICS LETTERS B
卷号633期号:6页码:#REF!
通讯作者Takamatsu, K (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
摘要Based on 58 million BESII J/psi events, the (K) over bar*(892)(0)K(+)pi(-) channel in K(+)K(-)pi(+)pi(-) is studied. A clear low mass enhancement in the invariant mass spectrum of K(+)pi(-) is observed. The low mass enhancement does not come from background of other J/psi decay channels, nor from phase space. Two independent partial wave analyses have been performed. Both analyses favor that the low mass enhancement is the K, an iso-spinor scalar resonant state. The average mass and width of the K in the two analyses are 878 +/- 23(-55)(+64) MeV/c(2) and 499 +/- 52(-87)(+55) MeV/c(2), respectively, corresponding to a pole at (841 +/- 30(-73)(+81)) -i(309 +/- 45(-72)(+48)) MeV/c(2). (c) 2006 Elsevier B.V. All rights reserved.
文章类型Article
关键词kappa low mass scalar J / psi decays K*(892)K-0 pi
学科领域Physics
DOI10.1016/j.physletb.2005.12.062
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000235566700003
引用统计
被引频次:104[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/311005/227758
专题实验物理中心
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BES Collaboration. Evidence for kappa meson production in J/psi ->(K)over-bar*(892)K-0(+)pi(-) process[J]. PHYSICS LETTERS B,2006,633(6):#REF!.
APA BES Collaboration.(2006).Evidence for kappa meson production in J/psi ->(K)over-bar*(892)K-0(+)pi(-) process.PHYSICS LETTERS B,633(6),#REF!.
MLA BES Collaboration."Evidence for kappa meson production in J/psi ->(K)over-bar*(892)K-0(+)pi(-) process".PHYSICS LETTERS B 633.6(2006):#REF!.
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