Structural properties of nuclei with semi-magic number N(Z)=40

2021/08/03 by R. Sharma, Ashok Kumar Jain, Sharma, R. +7
Physics and Astronomy · #Astronomical and nuclear sciences #FOS: Physical sciences #Nuclear Physics and Applications #Nuclear Theory (nucl-th) #Nuclear physics research studies

paper · pdf · doi:10.48550/arxiv.2108.01631

openalex publication_date 2021/08/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Various ground state properties are explored for full isotonic(isotopic) chain of neutron number N(proton number Z)=40 using different families of Relativistic Mean-Field theory. Several properties such as nucleon separation energies, pairing energies, deformation, radii and nucleon density distributions are evaluated and compared with the experimental data as well as those from other microscopic and macroscopic models. N=40 isotonic chain presents ample of support for the neutron magicity and articulates double magicity in recently discovered ⁶⁰Ca and ⁶⁸Ni. Our results are in close conformity with recently measured value of charge radius of ⁶⁸Ni [S. Kaufmann et al., Phys. Rev. Lett. 124, 132502 (2020)] which supports the N=40 magicity. Contrarily, Zr isotopes (Z=40) display variety of shapes leading to the phenomenon of shape transitions and shape co-existence. The role of 3s_1/2 state, which leads to central depletion if unoccupied, is also investigated. ⁵⁶₁₆S and ¹²²₄₀Zr are found to be doubly bubble nuclei.

Related

• A systematic study of neutron magic nuclei withN= 8, 20, 28, 50, 82 and 126 in the relativistic mean-field theory
• Exploring Shell Evolution and N = 40 Magicity in Light-Mass Nuclei with Relativistc Mean Field Approach
• Superheavy Magic Nuclei: Ground-State Properties, Bubble Structure and α-Decay Chains
• Ground state properties and bubble structure of the isotopic chains of Z = 125 and 126 using the relativistic mean-field formalism
• Evidence of double magicity of N=Z nuclei near the rp-process path