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arXiv 0901.4045hep-ph
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共振手征理论中标量介子a0(980)和f0(980)的辐射衰变

Radiative decays with scalar mesons a0(980) and f0(980) in Resonance Chiral Theory

S. Ivashyn, A. Korchin

摘要:

phi(1020)辐射衰变为研究低位的a0(980)和f0(980)标量介子提供了一个很好的场所。在φ(1020)-> π 0 π 0 γ和π η γ谱中,质量分布不变,这是K介子环机制、等熵介子混合和有效耦合动量依赖的复杂相互作用的结果。这些分布是在共振手性理论的框架下拟合的。

英文摘要:

The phi(1020) radiative decays form a good playground for study of the low-lying a0(980) and f0(980) scalar mesons. The complicated interplay of kaon loop mechanism, isoscalar meson mixing and momentum dependence of the effective couplings manifests itself in the invariant mass distributions in the phi(1020) -> pi0 pi0 gamma and pi eta gamma spectra. These distributions are fitted in framework of Resonance Chiral Theory.

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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