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Study of the process e(+)e(-) -> omega pi(0) in the phi-meson mass region with the KLOE detector
KLOE Collaboration
2008
发表期刊PHYSICS LETTERS B
卷号669期号:3--4页码:223-228
通讯作者De Santis, A (reprint author), Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
摘要We have studied the e(+)e(-) -> omega pi(0) cross section in the root s interval 1000-1030 MeV using the pi(+)pi(-)pi(0)pi(0) and pi(0)pi(0)gamma final states with a sample of similar to 6000 pb(-1) collected with the KLOE detector at DAONE. By fitting the observed interference pattern around M(phi) for both final states, we extract the ratio of the decay widths Gamma(omega -> pi(0)gamma)/Gamma(omega -> pi(+)pi(-)pi(0)) = 0.0897 +/- 0.0016 and derive the branching fractions BR(omega -> pi(+)pi(-)pi(0)) = (90.24 +/- 0.19)%, BR(omega -> pi(0)gamma) = (8.09 +/- 0.14)%. The parameters describing the e(+)e(-) -> pi(+)pi(-)pi(0)pi(0) reaction around M(phi) are also used to extract the branching fraction for the OZI and G-parity violating phi -> omega pi(0) decay: BR(phi -> omega pi(0)) = (4.4 +/- 0.6) x 10(-5). (C) 2008 Elsevier B.V. All rights reserved.
关键词BHABHA SCATTERING DECAY NE
学科领域Physics
DOI10.1016/j.physletb.2008.09.056
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000261605200006
引用统计
被引频次:40[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/311005/212883
专题实验物理中心
作者单位中国科学院高能物理研究所
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KLOE Collaboration. Study of the process e(+)e(-) -> omega pi(0) in the phi-meson mass region with the KLOE detector[J]. PHYSICS LETTERS B,2008,669(3--4):223-228.
APA KLOE Collaboration.(2008).Study of the process e(+)e(-) -> omega pi(0) in the phi-meson mass region with the KLOE detector.PHYSICS LETTERS B,669(3--4),223-228.
MLA KLOE Collaboration."Study of the process e(+)e(-) -> omega pi(0) in the phi-meson mass region with the KLOE detector".PHYSICS LETTERS B 669.3--4(2008):223-228.
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