| 矢量介子φ的动力学模型及耦合常数fφKK2,fωKK2与fρKK2的值 |
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| 引用本文： | 陈常加. 矢量介子φ的动力学模型及耦合常数fφKK2,fωKK2与fρKK2的值[J]. 物理学报, 1965, 21(12): 1996-2003 |
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| 作者姓名： | 陈常加 |
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| 摘 要： | 假设矢量介子φ(Ι=0,ι=1,mφ=7.30mπ)是K散射交换ρ,ω以及φ介子本身而形成的共振。应用双色散关系中的N/D方法,并设ρ,ω以及交换的φ介子的质量为已知,近似求出KK的分波散射振幅。当要求该振幅能重新给出正确的共振位置(φ的质量)和宽度时,即可得出偶合常数fφKK2、fωKK2与fρKK2所必需满足的关系,从而给出它们可能取的数值。
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| 收稿时间： | 1964-09-08 |
THE DYNAMICAL MODEL OF THE VECTOR MESON φ AND THE VALUES OF THE COUPLING CONSTANTS fφKK2,fωKK2 AND fρKK2 |
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| CHEN CHANG-CHIA. THE DYNAMICAL MODEL OF THE VECTOR MESON φ AND THE VALUES OF THE COUPLING CONSTANTS fφKK2,fωKK2 AND fρKK2[J]. Acta Physica Sinica, 1965, 21(12): 1996-2003 |
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| Authors: | CHEN CHANG-CHIA |
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| Abstract: | It is assumed that the vector meson φ is a resonance which is formed of the KK scattering by exchange of ρ, ω and φ itself. The method of N/D of the double dispersion relation is used and the experimental values of the masses are known for the ρ, ω and exchanged φ. The partial wave amplitude of the KK scattering is given approximately. When it is required for the partial wave amplitude to give in turn the correct position and width of the resonance, the relations for the coupling constants fφKK2,fωKK2 and fρKK2 are found and the values available for them are determined. |
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