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Study of resonance formation in the mass region 1400-1500 MeV through the reaction gamma gamma -> K-S(0) K-+/-pi(-/+)
2007
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号3
通讯作者Achard, P (reprint author), Univ Geneva, CH-1211 Geneva 4, Switzerland.
摘要The (KSK +/-)-K-0 pi(-/+) final state in two-photon collisions is studied with the L3 detector at LEP at e(+)e(-) centre- of- mass energies from 183 to 209 GeV with an integrated luminosity of 664.6 pb(-1). The eta (1475) and f(1)(1420) mesons are observed and their contribution is separated by measuring the formation rates as a function of the photon virtuality Q(2). The eta(1475) is found to be dominant for Q(2) <= 0.01 GeV2 and its two- photon width is measured to be 0.23 +/- 0.05 (stat.) +/- 0.05 (sys.) keV. At higher Q(2), the f(1)(1420) is formed and decays to K*(892) K. The coupling and form factor parameters of this state are measured to be Gamma(gamma gamma) = 3.2 +/- 0.6 (stat.) +/- 0.7 ( sys.) keV and Lambda(1) = 926 +/- 72 (stat.) +/- 32 (sys.) MeV, respectively.
关键词MONTE-CARLO GENERATOR GAMMA-GAMMA L3 EXPERIMENT QUANTUM CHROMODYNAMICS 2-PHOTON COLLISIONS SPIN-1 RESONANCE CROSS-SECTIONS DETECTOR LEP PHYSICS
学科领域Physics
DOI10.1088/1126-6708/2007/03/018
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000245922000018
引用统计
被引频次:8[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/311005/212807
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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. Study of resonance formation in the mass region 1400-1500 MeV through the reaction gamma gamma -> K-S(0) K-+/-pi(-/+)[J]. JOURNAL OF HIGH ENERGY PHYSICS,2007(3).
APA (2007).Study of resonance formation in the mass region 1400-1500 MeV through the reaction gamma gamma -> K-S(0) K-+/-pi(-/+).JOURNAL OF HIGH ENERGY PHYSICS(3).
MLA "Study of resonance formation in the mass region 1400-1500 MeV through the reaction gamma gamma -> K-S(0) K-+/-pi(-/+)".JOURNAL OF HIGH ENERGY PHYSICS .3(2007).
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