单胶子交换和单π交换夸克模型中核子负宇称共振态的电磁跃迁振幅(英文)

Electromagnetic Transition Amplitudes of Nucleon Negative parity Resonance by OPE and OGE Quark Models

摘要: 分别利用单胶子交换和单π交换夸克模型计算了核子负宇称激发态的电磁跃迁振幅,讨论了两个模型所给出的不同的组态混合角. 结果表明, 单胶子交换模型所给出的重子波函数比单π交换夸克模型的波函数更为合理.Electromagnetic transition amplitudes of negative parity resonances are calculated based on onepion exchange (OPE) model and one gluon exchange (OGE) model, respectively. The configuration mixing caused by the hyperfine interactions of the two models is discussed. Calculated results for the
amplitudes indicate that baryon wave functions of OGE are more reasonable
than those of OPE.

Abstract: Electromagnetic transition amplitudes of negative parity resonances are calculated based on onepion exchange (OPE) model and one gluon exchange (OGE) model, respectively. The configuration mixing caused by the hyperfine interactions of the two models is discussed. Calculated results for the
amplitudes indicate that baryon wave functions of OGE are more reasonable
than those of OPE.