| Structure at 2175 MeV in e(+)e(-)->phi f(0)(980) observed via initial-state radiation |
| BaBar Collaboration
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| 2006
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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.
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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
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DOI | 10.1103/PhysRevD.74.091103
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收录类别 | SCI
|
语种 | 英语
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WOS类目 | Astronomy & Astrophysics
; Physics, Particles & Fields
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WOS记录号 | WOS:000242409700003
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://ir.ihep.ac.cn/handle/311005/212751
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专题 | 实验物理中心
|
作者单位 | 中国科学院高能物理研究所
|
推荐引用方式 GB/T 7714 |
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).
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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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文件名:
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615.pdf
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