Isospin dependent properties of the isotopic chains of Scandium and Titanium nuclei within the relativistic mean-field formalism  

作　　者：Praveen K.Yadav Raj Kumar M.Bhuyan 

机构地区：[1]School of Physics and Materials Science,Thapar Institute of Engineering and Technology,Patiala-147004,Punjab,India [2]Center for Theoretical and Computational Physics,Department of Physics,Faculty of Science,University of Malaya,Kuala Lumpur 50603,Malaysia [3]Institute of Research and Development,Duy Tan University,Da Nang 550000,Vietnam

出　　处：《Chinese Physics C》2022年第8期155-169,共15页中国物理C（英文版）

基　　金：Supported by Science and Engineering Research Board (SERB)(CRG/2021/001229);FOSTECT (FOSTECT. 2019B.04);FAPESP (2017/05660-0)。

摘　　要：Density-dependent nuclear symmetry energy is directly related to iso spin asymmetry for finite and infinite nuclear systems.It is critical to determine the coefficients of symmetry energy and their related observables because they hold great importance in different areas of nuclear physics,such as the analysis of the structure of ground state exotic nuclei and neutron star studies.The ground state bulk properties of Scandium(Z=21) and Titanium(Z=22) nuclei are calculated,such as their nuclear binding energy(B.E.),quadrupole deformation(β_2),two-neutron separation energy(S_(2 n)),differential variation in the two-neutron separation energy(dS_(2 n)),and root-mean-square charge radius(r_(ch)).The iso spin properties,namely the coefficient of nuclear symmetry energy and its components,such as the surface and volume symmetry energy of a finite isotopic chain,from the corresponding quantities of infinite nuclear matter,are also estimated.Finally,we correlate the neutron-skin thickness with the coefficient of symmetry energy and the related observables corresponding to the isotopic chains of these nuclei.The coherent density fluctuation model(CDFM) is used to estimate the iso spin-dependent properties of finite nuclei,such as symmetry energy,surface symmetry energy,and volume symmetry energy,from their corresponding component in infinite nuclear matter.The relativistic mean-field(RMF) formalism with non-linear NL3 and relativistic-Hartree-Bogoliubov theory with density-dependent DD-ME2 interaction parameters are employed in the analysis.The weight function |F(x)|^(2) is estimated using the total density of each nucleus,which in turn is used with the nuclear matter quantities to obtain the effective symmetry energy and its components in finite nuclei.We calculate the ground state bulk properties,such as nuclear binding energy,quadrupole deformation,two-neutron separation energy,differential variation in the two-neutron separation energy,and root-mean-square charge radius,for the Sc-and Ti-isotopic chains using the non-l

关 键 词：relativistic energy density functional symmetry energy weight function isospin asymmetry 

分 类 号：O571[理学—粒子物理与原子核物理]