Structure at 2175 MeV in e(+)e(-)->phi f(0)(980) observed via initial-state radiation

doi:10.1103/PhysRevD.74.091103

IHEP OpenIR > 实验物理中心

	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
DOI	10.1103/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
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).
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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