<abstract xmlns="http://www.w3.org/1999/xhtml">Shell model calculations have been carried out for 90Nb nucleus with the model space in which the valence protons occupy the f5/2, p3/2, p1/2, and g9/2 orbitals and the valence neutrons occupy the p1/2, g9/2, d5/2, and g7/2 orbitals. According to the calculated results, the negative parity is from the contribution of the proton of the f5/2, p3/2, and p1/2 orbits. The moderate spin states of 90Nb are mainly due to the excitation of protons from the f5/2 and p3/2 orbits to the p1/2 and g9/2 orbits across the <italic>Z</italic> = 38 subshell closure, and the high spin states arise from the excitation of a single neutron from the g9/2 orbit into the d5/2 orbit across the <italic>N</italic> = 50 shell closure.</abstract>

Shell model calculations have been carried out for 90Nb nucleus with the model space in which the valence protons occupy the f5/2, p3/2, p1/2, and g9/2 orbitals and the valence neutrons occupy the p1/2, g9/2, d5/2, and g7/2 orbitals. According to the calculated results, the negative parity is from the contribution of the proton of the f5/2, p3/2, and p1/2 orbits. The moderate spin states of 90Nb are mainly due to the excitation of protons from the f5/2 and p3/2 orbits to the p1/2 and g9/2 orbits across the Z = 38 subshell closure, and the high spin states arise from the excitation of a single neutron from the g9/2 orbit into the d5/2 orbit across the N = 50 shell closure.

Investigation of the level structure of 90Nb nucleus using the shell model

School of Physics of Sun Yat-sen University

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Investigation of the level structure of Nb nucleus using the shell model

Shell model calculations have been carried out for 90Nb nucleus with the model space in which the valence protons occupy the f5/2, p3/2, p1/2, and g9/2...

Investigation of the level structure of ⁹⁰Nb nucleus using the shell model

Publié en ligne: 11 déc. 2019

Pages: 113 - 116

Reçu: 06 mars 2019

Accepté: 27 août 2019

DOI: https://doi.org/10.2478/nuka-2019-0014

Mots clés
high spin state, level structure, proton excitation, shell model

© 2019 Wu Yi-Heng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Investigation of the level structure of 90Nb nucleus using the shell model

Publié en ligne: 11 déc. 2019

Pages: 113 - 116

Reçu: 06 mars 2019

Accepté: 27 août 2019

DOI: https://doi.org/10.2478/nuka-2019-0014

Mots cléshigh spin state, level structure, proton excitation, shell model

© 2019 Wu Yi-Heng et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Investigation of the level structure of ⁹⁰Nb nucleus using the shell model

Mots clés
high spin state, level structure, proton excitation, shell model