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Study of the a(0)(980) meson via the radiative decay phi -> eta pi(0)gamma with the KLOE detector
KLOE Collaboration
2009
发表期刊PHYSICS LETTERS B
卷号681期号:1页码:5-13
通讯作者Gauzzi, P (reprint author), Univ Roma La Sapienza, Dipartimento Fis, Ple A Moro 2, I-00185 Rome, Italy.
文章类型Article
摘要We have studied the phi -> a(0)(980)gamma process with the KLOE detector at the Frascati phi-factory DA Phi NE by detecting the phi -> eta pi(0)gamma decays in the final states with eta -> gamma gamma and eta -> pi(+)pi(-)pi(0). We have measured the branching ratios for both final states: Br(phi -> eta pi(0)gamma) = (7.01 +/- 0.10 +/- 0.20) x 10(-5) and (7.12 +/- 0.13 +/- 0.22) x 10(-5), respectively. We have also extracted the a(0)(980) mass and its couplings to eta pi(0), K+K-, and to the phi meson from the fit of the eta pi(0) invariant mass distributions using different phenomenological models.
关键词e(+)e(-) collisions Scalar mesons Rare phi decays
学科领域Physics
DOI10.1016/j.physletb.2009.09.022
收录类别SCI
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000271411000002
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被引频次:26[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/311005/225454
专题加速器中心
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KLOE Collaboration. Study of the a(0)(980) meson via the radiative decay phi -> eta pi(0)gamma with the KLOE detector[J]. PHYSICS LETTERS B,2009,681(1):5-13.
APA KLOE Collaboration.(2009).Study of the a(0)(980) meson via the radiative decay phi -> eta pi(0)gamma with the KLOE detector.PHYSICS LETTERS B,681(1),5-13.
MLA KLOE Collaboration."Study of the a(0)(980) meson via the radiative decay phi -> eta pi(0)gamma with the KLOE detector".PHYSICS LETTERS B 681.1(2009):5-13.
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