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A systematic study of the ground state properties of the entire chains of even even neutron magic nuclei represented by isotones of traditional neutron magic numbers N = 8, 20, 40, 50, 82 and 126 has been carried out using relativistic mean…

Nuclear Theory · Physics 2017-05-24 G. Saxena , M. Kaushik

A systematic investigation of superheavy nuclei in the isotopic chains of proton numbers Z=106, 114, 120, and 126 together with isotonic chains of neutron numbers N=162, 172, and 184 is presented in the theoretical framework of relativistic…

Nuclear Theory · Physics 2024-10-22 R. Sharma , A. Jain , M. Kumawat , J. K. Deegwal , Abdul Quddus , G. Saxena

The ground-state properties of Zr and Sn isotopes are studied within the relativistic mean field theory. Zr and Sn isotopes have received tremendous attention due to various reasons, including the predicted giant halos in the neutron-rich…

Nuclear Theory · Physics 2008-11-26 L. S. Geng , H. Toki , J. Meng

Encouraged with the evidence for Z = 6 magic number in neutron-rich carbon isotopes, we have performed relativistic mean-field plus BCS calculations to investigate ground state properties of entire chains of isotopes(isotones) with Z(N) = 6…

Nuclear Theory · Physics 2018-12-26 M. Kumawat , G. Saxena , M. Kaushik , R. Sharma , S. K. Jain

Our understanding of nuclear properties in the vicinity of $^{100}$Sn, suggested to be the heaviest doubly magic nucleus with equal numbers of protons (Z=50) and neutrons (N=50), has been a long-standing challenge for experimental and…

N=Z nuclei above Ni are understood to be waiting-point nuclei in the rp-process nucleosynthesis. Investigating the experimental isotope shifts in Kr isotopes near the proton drip-line, we have discovered that N=Z rp-process nuclei…

Nuclear Theory · Physics 2009-07-07 M. M. Sharma , J. K. Sharma

Experimental energy spectrum and B(E2) values in 68Ni and 90Zr indicate a double-magic character in these neutron-rich nuclei with N or Z=40. The data nevertheless do not show any pronounced irregularity in two-nucleon separation energy. To…

Nuclear Theory · Physics 2014-11-18 K. Kaneko , M. Hasegawa , T. Mizusaki , Y. Sun

The ground state bulk properties such as binding energy, root-mean-square radius, pairing energy, nuclear density distributions, and single-particle energies are calculated for the isotopic chain of Ca, Sn, Pb, and Z = 120 nuclei. The…

Nuclear Theory · Physics 2022-01-24 Jeet Amrit Pattnaik , R. N. Panda , M. Bhuyan , S. K. Patra

The existence of magic numbers of protons and neutrons in nuclei is essential for understanding nuclear structure and fundamental nuclear forces. Over decades, researchers have conducted theoretical and experimental studies on the new magic…

Nuclear Theory · Physics 2025-01-07 H. Li , H. J. Ong , D. Fang , I. A. Mazur , I. J. Shin , A. M. Shirokov , J. P. Vary , P. Yin , X. Zhao , W. Zuo

In this theoretical study, we report an investigation on the behavior of two neutron separation energy, differential variation of the separation energy and the abnormality in nuclear charge radius along the isotopic and isotonic chains of…

Nuclear Theory · Physics 2015-10-01 M. Bhuyan

Encouraged by the success of RMF+BCS approach for the description of the ground state properties of the chains of isotopes of proton magic nuclei with proton number Z=8, 20, 28, 50 and 82 as well as those of proton sub-magic nuclei with…

Nuclear Theory · Physics 2013-10-16 G. Saxena , D. Singh , M. Kaushik , H. L. Yadav , H. Toki

It is now known that in neutron rich nuclei, old magic numbers disappear and new ones appear. Single nucleon and double nucleon separation energies are plotted here in all possible manner.Using this data it is shown here for the first time…

General Physics · Physics 2009-11-10 Afsar Abbas

In this work, we identify a unique and novel feature of central density depletion in both proton and neutron named as doubly bubble nuclei in 50$\leq$Z(N)$\leq$82 region. The major role of 2d-3s single-particle (s.p.) states in the…

Nuclear Theory · Physics 2020-10-20 M. Kumawat , G. Saxena , M. Kaushik , S. K. Jain , J. K. Deegwal , Mamta Aggarwal

A fully systematic study of even and odd isotopes (281 $\leq$ A $\leq$ 380) of Z = 121 superheavy nuclei is presented in theoretical frameworks of Relativistic mean-field plus state dependent BCS approach and Macroscopic-Microscopic…

Nuclear Theory · Physics 2018-10-17 G. Saxena , U. K. Singh , M. Kumawat , M. Kaushik , S. K. Jain , Mamta Aggarwal

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…

Nuclear Theory · Physics 2018-12-26 G. Saxena , M. Kumawat , M. Kaushik , S. K. Jain , Mamta Aggarwal

Recent experimental observation of magicity in $^{78}$Ni has infused the interest to examine the persistence of the magic character across the N$=$50 shell gap in extremely neutron rich exotic nucleus $^{78}$Ni in ground as well as excited…

Nuclear Theory · Physics 2018-08-15 Mamta Aggarwal , G. Saxena

Encouraged by the success of RMF+BCS approach for the description of the ground state properties of the chains of isotopes of proton magic nuclei with proton number \textit{Z}=8, 20, 28, 50 and 82 as well as those of proton sub-magic nuclei…

Nuclear Theory · Physics 2015-06-17 D. Singh , G. Saxena , M. Kaushik , H. L. Yadav , H. Toki

Isotopic and isotonic chains of superheavy nuclei are analyzed to search for spherical double shell closures beyond Z=82 and N=126 within the new effective field theory model of Furnstahl, Serot, and Tang for the relativistic nuclear…

Nuclear Theory · Physics 2010-12-23 Tapas Sil , S. K. Patra , B. K. Sharma , M. Centelles , X. Vinas

In rapid-proton capture (rp-process), N=Z nuclei above Ni are understood to act as waiting-point nuclei. The N=Z nuclei 68Se, 72Kr, 76Sr and 80Zr among others are known to give rise to a large-energy x-ray flux and peaks in abundances of…

Nuclear Theory · Physics 2015-05-20 M. M. Sharma , J. K. Sharma
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