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arXiv 1208.0428hep-ph
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U(3)ChPT的最新进展:介子-介子散射和有限能量求和规则

Recent developments in U(3) ChPT: meson-meson scattering and finite energy sum rules

Zhi-Hui Guo, J. A. Oller, J. Ruiz de Elvira

摘要:

在U(3)手征微扰理论的单圈计算基础上,讨论了介子-介子散射和有限能量和规则(FESR)。首先,我们从归一化的分波散射振幅获得相关的共振光谱。然后,我们调查如何以及FESR可以满足在物理情况下,在Nc=3。对Nc的外推也作了进一步的讨论。

英文摘要:

We discuss the meson-meson scattering and finite energy sum rule(FESR), based on the one-loop calculation within U(3) chiral perturbation theory. First we obtain the pertinent resonance spectroscopy from the unitarized partial wave scattering amplitudes. Then we investigate how well the FESR can be satisfied in the physical situation at Nc=3. Further discussions on the extrapolation of Nc are also given.

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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