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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Symmetry energy and neutron pressure of finite nuclei using the relativistic mean-field formalism

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Autor(es):
Biswal, Nibedita [1] ; Sheikh, M. K. Abu El [2] ; Behera, Deepanjali [3] ; Biswal, Subrat Kumar [4] ; Patra, Suresh Kumar [5] ; Yusof, Norhliza [2] ; Abu Kassim, Hassan [2] ; Carlson, Brett Vern [6] ; Bhuyan, Mrutunjaya [2, 7, 8]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] North Odisha Univ, Dept Phys, Baripada 757003, Odisha - India
[2] Univ Malaya, Fac Sci, Dept Phys, Kuala Lumpur 50603 - Malaysia
[3] Sambalpur Univ, Sch Phys, Jyoti Vihar 768019 - India
[4] Xiamen Univ, Dept Astron, Xiamen 361005 - Peoples R China
[5] Sainik Sch, Inst Phys, Sachivalaya Marg, Bhubaneswar 751005 - India
[6] Inst Tecnol Aeronaut, Dept Fis, DCTA, BR-12228900 Sao Jose Dos Campos, SP - Brazil
[7] Ton Duc Thang Univ, Fac Appl Sci, Ho Chi Minh City - Vietnam
[8] Ton Duc Thang Univ, Adv Inst Mat Sci, Atom Mol & Opt Res Grp, Ho Chi Minh City - Vietnam
Número total de Afiliações: 8
Tipo de documento: Artigo Científico
Fonte: ASTRONOMISCHE NACHRICHTEN; v. 342, n. 1-2, SI, p. 462-468, JAN 2021.
Citações Web of Science: 1
Resumo

The present study investigates the isospin and Z-dependency of the effective symmetry energy and its co-efficient, namely, neutron pressure for the isotonic chain of neutron magic N = 40, and 82. The relativistic mean-field model with the non-linear NL3{*} parameter and Relativistic-Hartree-Bogoliubov approach with density-dependent DD-ME2 parameter sets are used for the analysis. The coherent density fluctuation model and Liquid-Drop-Approximation are adopted to formulate the nuclear matter observables such as symmetry energy, neutron pressure of finite nuclei at local density. We found a notable sign of the shell/sub-shell closure following the proton magic over the isotonic chain. Further, a comparative analysis shows that the coherent density fluctuation model is a better approximation to include the surface effect of finite nuclei as compared to the Liquid-Drop-Approximation, which plays a significant role to determine the shell/sub-shell closure over an isotopic and/or isotonic chain. (AU)

Processo FAPESP: 17/05660-0 - Estudos teóricos da estrutura e reações de núcleos exóticos e sistemas de muitos corpos
Beneficiário:Brett Vern Carlson
Modalidade de apoio: Auxílio à Pesquisa - Temático