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e(+)e(-) -> pi(+)pi(-)pi(+)pi(-), K+K-pi(+)pi(-), and K+K-K+K- cross sections at center-of-mass energies 0.5-4.5 GeV measured with initial-state radiation
BaBar Collaboration
2005
发表期刊PHYSICAL REVIEW D
卷号71期号:5
通讯作者Aubert, B (reprint author), Phys Particules Lab, F-74941 Annecy Le Vieux, France.
摘要We study the process e(+)e- -> pi(+)pi(-)pi(+)pi(-) gamma, with a hard photon radiated from the initial state. About 60 000 fully reconstructed events have been selected from 89 fb(-1) of BABAR data. The invariant mass of the hadronic final state defines the effective e(+)e(-) e(+)e(-) center-of-mass energy, so that these data can be compared with the corresponding direct e(+)e(-) measurements. From the 4 pi -mass spectrum, the cross section for the process e(+)e(-) -> pi(+)pi(-)pi(+)pi(-) is measured for center-of-mass energies from 0.6 to 4.5 GeV. The uncertainty in the cross section measurement is typically 5%. We also measure the cross sections for the final states K+K- pi(+)pi(-) and K+K-K+K-. We observe the J/psi in all three finial states and measure the corresponding branching fractions. We search for X(3872) in J/psi(-> mu(+)mu(-))pi(+)pi(-) and obtain an upper limit on the product of the e(+)e(-) width of the X(3872) and the branching fraction for X(3872) -> J/psi pi(+)pi(-).
关键词BHABHA SCATTERING TAGGED PHOTONS MONTE-CARLO PHYSICS
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.71.052001
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000228490000011
引用统计
被引频次:119[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/311005/212530
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
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BaBar Collaboration. e(+)e(-) -> pi(+)pi(-)pi(+)pi(-), K+K-pi(+)pi(-), and K+K-K+K- cross sections at center-of-mass energies 0.5-4.5 GeV measured with initial-state radiation[J]. PHYSICAL REVIEW D,2005,71(5).
APA BaBar Collaboration.(2005).e(+)e(-) -> pi(+)pi(-)pi(+)pi(-), K+K-pi(+)pi(-), and K+K-K+K- cross sections at center-of-mass energies 0.5-4.5 GeV measured with initial-state radiation.PHYSICAL REVIEW D,71(5).
MLA BaBar Collaboration."e(+)e(-) -> pi(+)pi(-)pi(+)pi(-), K+K-pi(+)pi(-), and K+K-K+K- cross sections at center-of-mass energies 0.5-4.5 GeV measured with initial-state radiation".PHYSICAL REVIEW D 71.5(2005).
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