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arXiv 0712.0658hep-ph
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协变U~(12)格式下的qqbar S波轴矢量介子

The qqbar S-wave axial-vector mesons in the covariant U~(12)-scheme

Tomohito Maeda, Kenji Yamada, Masuho Oda, Shin Ishida

摘要:

本文通过对轴矢量介子a1和b1的辐射衰变和介子衰变的分析,研究了U~(12)-方案预言的相对论S波态的性质。具体地说,利用一个简单的衰变相互作用模型,计算了强α 1(b1)-> ρ(ω)π过程的部分宽度,它们的D/S波振幅比,以及α 1(b1)-> π γ过程的辐射跃迁宽度,并与相应的实验值进行了比较。

英文摘要:

We study the properties of axial vector mesons a1 and b1 as relativistic S-wave states which are predicted in the U~(12)-scheme, through the analyses of their radiative and pionic decays. Specifically, partial widths of the strong a1 (b1) -> rho(omega) pi processes, their D/S-wave amplitude ratios, and radiative transition widths of a1(b1) -> pi gamma processes are calculated by using a simple decay interaction model, and made a comparison with the respective experimental values.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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