Analytical investigation of electromagnetic transition form factors of nucleon resonances

被引：0
作者：
Zolfagharpour, Farhad [1 ]
Aslanzadeh, Mehdi [1 ]
机构：
[1] Univ Mohaghegh Ardabili, Fac Sci, Dept Phys, POB 179, Ardebil, Iran
来源：
NUCLEAR PHYSICS A | 2020年 / 1000卷
关键词：
Nonrelativistic quark model; Electromagnetic form factors; Baryon resonances with S=0 protons and neutrons; Quarks; gluons; QCD in nuclear reactions; QUARK-MODEL; BARYONS; EXCITATION; MASSES; Q(2);
D O I：
10.1016/j.nuclphysa.2020.121784
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
In this paper, we investigated the transition form factors of nucleon resonances, in an analytical approach. Employing an improved hypercentral constituent quark model, we obtained analytical eigenfunctions which have been used to calculate the transverse and longitudinal helicity amplitudes for nucleon resonances. We compared the evaluated observables with experimental data and it has been shown that the present model provides a good description of the available data. (C) 2020 Elsevier B.V. All rights reserved.
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页数：15
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