On the symmetry energy and deformed magic number atN=100 in rare earth nuclei

Author(s)

Kaur, Manpreet ^{[1, 2]} ; Quddus, Abdul ^[3] ; Kumar, Ankit ^{[1, 2]} ; Bhuyan, M. ^{[4, 5]} ; Patra, S. K. ^{[1, 2]}

Affiliation

^[1] Homi Bhabha Natl Inst, Mumbai 400085, Maharashtra - India

^[2] Inst Phys, Bhubaneswar 751005 - India

^[3] Aligarh Muslim Univ, Dept Phys, Aligarh 202002, Uttar Pradesh - India

^[4] Univ Malaya, Fac Sci, Dept Phys, Kuala Lumpur 50603 - Malaysia

^[5] Duy Tan Univ, Inst Res Dev, Da Nang 550000 - Vietnam

• Document type: Journal article
• Source: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS; v. 47, n. 10 OCT 2020.
• Web of Science Citations: 0

Abstract

The exotic nuclei are a fertile source of new features of nuclear structure. The evolution of new shell gaps accompanied by quenching of classical magic numbers is one of the marked features in these nuclei. These studies aimed to search and explore such behavior and find major significance on both the experimental and theoretical fronts. Here, we present an inclusive study and significant evidence of the existence of deformed shell closure at the neutron numberN= 100 in rare earth Nd, Sm, Gd and Dy nuclei, obtained from the persistence of a peak in the analysis of symmetry energy and its bulk and surface components, over the isotopic chains of these nuclei, within the coherent density fluctuation model (CDFM). The relativistic mean field densities, employing the NL3 and recently developed IOPB-I parameter sets, have been used as an input within CDFM. This result is in excellent agreement with our earlier prediction of deformed magic shell closure atN= 100 in rare earth nuclei {[}Satpathyet al(2004J.Phys.G30771); Ghouriet al(2012Phys.Rev.C85064327)] and further reinforced by the experimental confirmation of deformed magicity atN= 100 in(162)Sm and(164)Gd nuclei {[}Patelet al(2014Phys.Rev.Lett.113262502)]. An important consequence of the work is thatN= 100 isotopes of these nuclei can serve as a waiting point inr-process nucleosynthesis and influence the heavy nuclei formation in astrophysical entities. (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