Analytical investigation of γN→N ,△ transition helicity amplitudes

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2020,（7）
• 页码范围: 157-166
• 页数: 10页
• 语种: 英文
• DOI: 10.1088/1674-1137/44/7/074109

摘要

We study the structure of nonstrange baryons by analytically calculating the electromagnetic transition helicity amplitudes of the nucleon and △ resonances.We employ an improved hypercentral constituent quark model and obtain the corresponding eigenenergies and eigenfunctions in closed forms.Then,we calculate the transverse and longitudinal helicity amplitudes for nucleon and △ resonances.The comparison of evaluated observables and experimental data indicates good agreement between the proposed model and available data.