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Precision measurement of the e(+)e(-) -> K+K-(gamma) cross section with the initial-state radiation method at BABAR
BaBar Collaboration
2013
发表期刊PHYSICAL REVIEW D
卷号88期号:3
通讯作者Lees, JP (reprint author), Univ Savoie, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France.
摘要A precise measurement of the cross section for the process e(+)e(-) -> K+K-(gamma) from threshold to an energy of 5 GeV is obtained with the initial-state radiation (ISR) method using 232 fb(-1) of data collected with the BABAR detector at e(+)e(-) center-of-mass energies near 10.6 GeV. The measurement uses the effective ISR luminosity determined from the e(+)e(-) -> mu(+)mu(-)(gamma)gamma(ISR) process with the same data set. The corresponding lowest-order contribution to the hadronic vacuum polarization term in the muon magnetic anomaly is found to be a(mu)(KK,LO) = (22.93 +/- 0.18(stat) +/- 0.22(syst)) x 10(-10). The charged kaon form factor is extracted and compared to previous results. Its magnitude at large energy significantly exceeds the asymptotic QCD prediction, while the measured slope is consistent with the prediction.
关键词FORM-FACTORS QUANTUM CHROMODYNAMICS MAGNETIC-MOMENT PAIR PRODUCTION TAGGED PHOTONS MONTE-CARLO MUON PION DETECTOR DECAYS
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.88.032013
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000323609500003
引用统计
被引频次:43[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/311005/213590
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. Precision measurement of the e(+)e(-) -> K+K-(gamma) cross section with the initial-state radiation method at BABAR[J]. PHYSICAL REVIEW D,2013,88(3).
APA BaBar Collaboration.(2013).Precision measurement of the e(+)e(-) -> K+K-(gamma) cross section with the initial-state radiation method at BABAR.PHYSICAL REVIEW D,88(3).
MLA BaBar Collaboration."Precision measurement of the e(+)e(-) -> K+K-(gamma) cross section with the initial-state radiation method at BABAR".PHYSICAL REVIEW D 88.3(2013).
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