The e(+)e(-)-> 3(pi(+)pi(-)), 2(pi(+)pi(-)pi(0)) and K(+)K(-)2(pi(+)pi(-)) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation
BABAR Collaboration
刊名PHYSICAL REVIEW D
2006
卷号73期号:5页码:52003
学科分类Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.73.052003
通讯作者Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France.
文章类型Article
英文摘要We study the processes e(+)e(-)-> 3(pi(+)pi(-))gamma, 2(pi(+)pi(-)pi(0))gamma and K(+)K(-)2(pi(+)pi(-))gamma, with the photon radiated from the initial state. About 20 000, 33 000 and 4000 fully reconstructed events, respectively, have been selected from 232 fb(-1) of BABAR data. The invariant mass of the hadronic final state defines the effective e(+)e(-) center-of-mass energy, so that these data can be compared with the corresponding direct e(+)e(-) measurements. From the 3(pi(+)pi(-)), 2(pi(+)pi(-)pi(0)) and K(+)K(-)2(pi(+)pi(-)) mass spectra, the cross sections for the processes e(+)e(-)-> 3(pi(+)pi(-)), e(+)e(-)-> 2(pi(+)pi(-)pi(0)) and e(+)e(-)-> K(+)K(-)2(pi(+)pi(-)) are measured for center-of-mass energies from production threshold to 4.5 GeV. The uncertainty in the cross section measurement is typically 6%-15%. We observe a structure at 1.9 GeV in both cross sections and a resonance structure with mass 1645 +/- 0.008 GeV/c(2) and width 0.114 +/- 0.014 GeV when the omega(782)eta final state is extracted. We observe the J/psi in all these final states and measure the corresponding branching fractions.
类目[WOS]Astronomy & Astrophysics ; Physics, Particles & Fields
收录类别SCI
WOS记录号WOS:000236465800013
引用统计
被引频次:107[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/311005/227909
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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GB/T 7714
BABAR Collaboration. The e(+)e(-)-> 3(pi(+)pi(-)), 2(pi(+)pi(-)pi(0)) and K(+)K(-)2(pi(+)pi(-)) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation[J]. PHYSICAL REVIEW D,2006,73(5):52003.
APA BABAR Collaboration.(2006).The e(+)e(-)-> 3(pi(+)pi(-)), 2(pi(+)pi(-)pi(0)) and K(+)K(-)2(pi(+)pi(-)) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation.PHYSICAL REVIEW D,73(5),52003.
MLA BABAR Collaboration."The e(+)e(-)-> 3(pi(+)pi(-)), 2(pi(+)pi(-)pi(0)) and K(+)K(-)2(pi(+)pi(-)) cross sections at center-of-mass energies from production threshold to 4.5 GeV measured with initial-state radiation".PHYSICAL REVIEW D 73.5(2006):52003.
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