Isotopic shift in magic nuclei within relativistic mean-field formalism

Author(s)

Pattnaik, Jeet Amrit ^[1] ; Bhuyan, M. ^{[2, 3]} ; Panda, R. N. ^[1] ; Patra, S. K. ^{[4, 5]}

Affiliation

^[1] Siksha O Anusandhan Deemed Be Univ, Dept Phys, Bhubaneswar 751030 - India

^[2] Duy Tan Univ, Inst Res & Dev, Da Nang 550000 - Vietnam

^[3] Univ Malaya, Ctr Theoret & Computat Phys, Dept Phys, Kuala Lumpur 50603 - Malaysia

^[4] Inst Phys, Sachivalya Marg, Bhubaneswar 751005 - India

^[5] Homi Bhabha Natl Inst, Training Sch Complex, Mumbai 400094, Maharashtra - India

• Document type: Journal article
• Source: PHYSICA SCRIPTA; v. 96, n. 12 DEC 2021.
• Web of Science Citations: 0

Abstract

The ground-state properties such as binding energy, root-mean-square radius, pairing energy, nucleons density distribution, symmetry energy, and single-particle energies are calculated for the isotopic chain of Ca, Sn, Pb, and Z = 120 nuclei. The recently developed G3 and IOPB-I forces along with the DD-ME1 and DD-ME2 sets are used in the analysis employing the relativistic mean-field approximation. To locate the magic numbers in the superheavy region and to explain the observed kink at neutron number N = 82 for Sn isotopes, a three-point formula is used to see the shift of the observable and other nuclear properties in the isotopic chain. Unlike the electronic configuration, due to strong spin-orbit interaction, the higher spin orbitals are occupied earlier than the lower spin, causing the possible kink at the neutron magic numbers. We find peaks at the known neutron magic number with the confirmation of sub-shell, shell closure respectively at N = 40, 184 for Ca and (304)120. (AU)

• FAPESP's process: 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems
• Grantee: Brett Vern Carlson
• Support Opportunities: Research Projects - Thematic Grants