Regular Article - Theoretical Physics
Study of N(1520) and N(1535) structures via transitions
School of Physics and Center of Excellence in High Energy Physics and Astrophysics, Suranaree University of Technology, 30000, Nakhon Ratchasima, Thailand
2 School of Physics, Liaoning University, 110036, Shenyang, China
3 Department of Physics, Faculty of Science, Burapha University, 20131, Chonburi, Thailand
Accepted: 17 September 2022
Published online: 27 September 2022
The helicity amplitudes of the N(1520) and N(1535) resonances in the electromagnetic transition are studied in the constituent quark model using the impulse approximation, with the proton and resonances assumed to be in three-quark configurations. The comparison of theoretical results and experimental data on the helicity amplitudes , , and indicates that the N(1520) and N(1535) resonances are primarily composed of three-quark states but may contain additional components. However, it is improbable that contributions from meson clouds will be dominant at low .
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