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Structure at 2175 MeV in e(+)e(-)->phi f(0)(980) observed via initial-state radiation
BaBar Collaboration
2006
发表期刊PHYSICAL REVIEW D
卷号74期号:9
通讯作者Aubert, B (reprint author), CNRS, Lab Phys Particules, IN2P3, F-74941 Annecy Le Vieux, France.
摘要We study the initial-state-radiation processes e(+)e(-)-> K+K-pi(+)pi(-)gamma and e(+)e(-)-> K+K-pi(0)pi(0)gamma using an integrated luminosity of 232 fb(-1) collected at the Upsilon(4S) mass with the BABAR detector at SLAC. Even though these reactions are dominated by intermediate states with excited kaons, we are able to study for the first time the cross section for e(+)e(-)->phi(1020)f(0)(980) as a function of center-of-mass energy. We observe a structure near threshold consistent with a 1(--) resonance with mass m=2.175 +/- 0.010 +/- 0.015 GeV/c(2) and width Gamma=58 +/- 16 +/- 20 MeV. We observe no Y(4260) signal and set a limit of B-Y ->phi pi(+)pi(-)center dot Gamma(Y)(ee)< 0.4 eV (90% confidence level), which excludes some models.
关键词BHABHA SCATTERING MONTE-CARLO ENERGIES PHYSICS
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.74.091103
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000242409700003
引用统计
被引频次:179[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/311005/212751
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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BaBar Collaboration. Structure at 2175 MeV in e(+)e(-)->phi f(0)(980) observed via initial-state radiation[J]. PHYSICAL REVIEW D,2006,74(9).
APA BaBar Collaboration.(2006).Structure at 2175 MeV in e(+)e(-)->phi f(0)(980) observed via initial-state radiation.PHYSICAL REVIEW D,74(9).
MLA BaBar Collaboration."Structure at 2175 MeV in e(+)e(-)->phi f(0)(980) observed via initial-state radiation".PHYSICAL REVIEW D 74.9(2006).
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