Precision measurement of the branching fractions of J/psi -> pi(+)pi(-)pi(0) and psi ' -> pi(+)pi(-)pi(0)
BESIII Callaboration
刊名PHYSICS LETTERS B
2012
卷号710期号:4--5页码:594-599
关键词RHO-PI PUZZLE DECAYS BESIII
学科分类Physics
DOI10.1016/j.physletb.2012.03.036
通讯作者Berger, N (reprint author), Inst High Energy Phys, Beijing 100049, Peoples R China.
英文摘要We study the decays of the J/psi and psi' mesons to pi(+)pi(-)pi(0) using data samples at both resonances collected with the BES III detector in 2009. We measure the corresponding branching fractions with unprecedented precision and provide mass spectra and Dalitz plots. The branching fraction for J/psi -> pi(+)pi(-)pi(0) is determined to be (2.137 +/- 0.004 (stat.)(-0.056)(+0.058) (syst.)(-0.026)(+0.027) (norm.)) x 10(-2), and the branching fraction for psi' -> pi(+)pi(-)pi(0) is measured as (2.14 +/- 0.03 (stat.)(-0.07)(+0.08) (syst.)(-0.08)(+0.09) (norm)) x 10(-4). The J/psi decay is found to be dominated by an intermediate rho(770) state, whereas the psi' decay is dominated by di-pion masses around 2.2 GeV/c(2), leading to strikingly different Dalitz distributions. (C) 2012 Elsevier B.V. All rights reserved.
类目[WOS]Physics, Multidisciplinary
收录类别SCI
语种英语
WOS记录号WOS:000303221800011
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被引频次:7[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/311005/213224
专题中国科学院高能物理研究所_实验物理中心_期刊论文
作者单位中国科学院高能物理研究所
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BESIII Callaboration. Precision measurement of the branching fractions of J/psi -> pi(+)pi(-)pi(0) and psi ' -> pi(+)pi(-)pi(0)[J]. PHYSICS LETTERS B,2012,710(4--5):594-599.
APA BESIII Callaboration.(2012).Precision measurement of the branching fractions of J/psi -> pi(+)pi(-)pi(0) and psi ' -> pi(+)pi(-)pi(0).PHYSICS LETTERS B,710(4--5),594-599.
MLA BESIII Callaboration."Precision measurement of the branching fractions of J/psi -> pi(+)pi(-)pi(0) and psi ' -> pi(+)pi(-)pi(0)".PHYSICS LETTERS B 710.4--5(2012):594-599.
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