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Study of the decay phi -> f(0)(980)gamma -> pi (+) pi(-) gamma with the KLOE detector
KLOE Collaboration
2006
发表期刊PHYSICS LETTERS B
卷号634期号:2--3页码:148-154
通讯作者Bacci, C (reprint author), Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy.
摘要We measured, with the KLOE detector, the spectrum of pi(+)pi(-) invariant mass in a sample of 6.7 x 10(5) e(+)e(-) -> pi(+)pi(-)gamma events with the photon at large polar angle (theta(gamma) > 45 degrees) at a centre of mass energy root s around the phi mass. We observe in this spectrum a clear contribution from the intermediate process phi -> f(0)(980)gamma. A sizeable effect is also observed in the distribution of the pion forward-backward asymmetry. We use different theoretical models to fit the spectrum and we determine the to mass and coupling constants to the phi, to pi(+)pi(-) and to KK. (c) 2006 Elsevier B.V. All rights reserved.
关键词COUPLED-CHANNEL ANALYSIS PI(-)PI(+)PI(+) DECAY MESONS PHI SEARCH STATES
学科领域Physics
DOI10.1016/j.physletb.2006.01.016
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000235859800011
引用统计
被引频次:74[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/311005/212649
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 decay phi -> f(0)(980)gamma -> pi (+) pi(-) gamma with the KLOE detector[J]. PHYSICS LETTERS B,2006,634(2--3):148-154.
APA KLOE Collaboration.(2006).Study of the decay phi -> f(0)(980)gamma -> pi (+) pi(-) gamma with the KLOE detector.PHYSICS LETTERS B,634(2--3),148-154.
MLA KLOE Collaboration."Study of the decay phi -> f(0)(980)gamma -> pi (+) pi(-) gamma with the KLOE detector".PHYSICS LETTERS B 634.2--3(2006):148-154.
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