Application of the coherent density fluctuation model to study the nuclear matter properties of finite nuclei within the relativistic mean-field formalism

Kumar, Ankit and Das, H. C. and Kaur, Manpreet and Bhuyan, Mrutunjaya and Patra, S. K. (2021) Application of the coherent density fluctuation model to study the nuclear matter properties of finite nuclei within the relativistic mean-field formalism. Physical Review C, 103 (2). ISSN 2469-9985,

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Official URL: https://doi.org/10.1103/PhysRevC.103.024305

Abstract

We obtained a density-dependent analytical expression of binding energy per nucleon for different neutron- proton asymmetry of the nuclear matter (NM) with a polynomial fitting, which manifests the results of effective- field theory motivated relativistic mean-field (E-RMF) model. This expression has the edge over the Bruckner energy density functional Phys. Rev. 171, 1188 (1968)] since it resolves the Coster-Band problem. The NM parameters like incompressibility, neutron pressure, symmetry energy, and its derivatives are calculated using the acquired expression of energy per nucleon. Furthermore, the weight function calculated by E-RMF densities are folded with calculated NM parameters within coherent density fluctuation model to find the properties of closed or semiclosed-shell even-even O-16, Ca-40, Ca-48, Ni-56 , Zr-90, (116 )n, and Pb-208 nuclei. The values obtained for the neutron pressure P-A, symmetry energy S-A , and its derivative L(sym)( )(A)known as the slope parameter lie within a narrow domain whereas there is a large variation in isoscalar incompressibility K-A and surface incompressibility K-sym(A) while moving from light to heavy nuclei. The sizable variation in K-A and K-sym(A) for light and heavy nuclei depicts their structural dependence due to the peculiar density distribution of each nucleus. A comparison of surface quantities calculated in the present work has also been made with ones obtained via Bruckner energy density functional.

Item Type: Article
Funders: Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) (2017/05660-0), FOSTECT (FOSTECT.2019B.04), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)
Uncontrolled Keywords: Binding energy; Neutron- proton asymmetry; Nuclear matter (NM); Bruckner energy density functional
Subjects: Q Science > QC Physics
Divisions: Faculty of Science
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Feb 2022 05:37
Last Modified: 23 Feb 2022 05:37
URI: http://eprints.um.edu.my/id/eprint/26841

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