2018/09/01 by G. Saxena, M. Kumawat, M. Kaushik +3 · 1 citation
Physics and Astronomy · #Advanced Chemical Physics Studies #Astrophysics #Atomic and Molecular Physics #Atomic physics #Bubble #Coulomb #Isotope #MAGIC (telescope) #Mechanics #Nuclear physics #Nuclear physics research studies #Nucleus #Physics #nucl-ex #nucl-th
paper · pdf · doi:10.1016/j.physletb.2018.08.076
7 pages, 8 figures, Accepted, Physics Letters B, 2018
arxiv created 2018/09/01 · openalex publication_date 2018/11/13 · arxiv updated 2018/12/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The existence of bubble nuclei identified by the central depletion in nucleonic density is studied for the conventional magic N (Z) = 8, 20, 28, 40, 50, 82, 126 isotones (isotopes) and recently speculated magic N = 164, 184, 228 superheavy isotones. Many new bubble nuclei are predicted in all regions. Study of density profiles, form factor, single particle levels and depletion fraction (DF) across the periodic chart reveals that the central depletion is correlated to shell structure and occurs due to unoccupancy in s-orbit (2s, 3s, 4s) and inversion of (2s, 1d) and (3s, 1h) states in nuclei upto Z ≤ 82. Bubble effect in superheavy region is a signature of the interplay between the Coulomb and nn-interaction where the depletion fraction (DF) is found to increase with Z (Coulomb repulsion) and decrease with isospin. Our results are consistent with the available data. The occupancy in s-state in 34Si increases with temperature which appears to quench the bubble effect.