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Fitting the Nuclear Binding Energy Coefficients for Liquid Drop Model and Adding a mathematical terms to the Closed Shell of Magic Nuclei

Article

Last updated: 03 Jan 2025

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Abstract

The present study reconsiders the formula of the Liquid Drop Model (LDM) in addition to updating the terms of the energy parameters represented by the term of volume, surface, coulomb, asymmetry and pairing. This was done using the least-squares method (LSM) by means of a computer program in the Fortran language to match the nuclear binding energy for more than 480 different nuclei, including the magic nuclei of the range (2 ≤ Z ≤ 92). A mathematical term represented by the closed shell term, in addition to the energy terms above, was derived once by the difference between the separation energy of protons and neutrons and again by the method of valence nucleons, which represents the highest energy level in any nucleus because it is the only energy that participates in spinning the nucleus. New energy parameters were obtained specifically for the Liquid Drop Model which enabled us to determine the theoretical nuclear binding energy in a good match with its experiment values for most of the nuclei used, especially the magical nuclei. The standard deviation (σ ) was used as a statistical tool to determine the extent to which the model can be adopted to explain the behavior of magic nuclei, in addition to the high accuracy in determining the theoretical nuclear binding energy. The value of the standard deviation ( σ = 0.126 ) and (σ=0.144)) for the two updated formulas of the model were the generalized liquid drop models (GLDM)₁ and (GLDM )₂, respectively.

DOI

10.21608/ajnsa.2022.135860.1574

Keywords

Liquid Drop Model, Least-square method, Closed shell term, Separation energy, Valence nucleon

Authors

First Name

fadwa

Last Name

aldawdy

MiddleName

-

Affiliation

Iraq , Mosul , University of Mosul, College of science, Physics department

Email

fadwa.20scp9@student.uomosul.edu.iq

City

-

Orcid

-

First Name

Firas

Last Name

Al-jomaily

MiddleName

Mohammed Ali

Affiliation

Physics Department College of Science, Mosul University, Mosul, IRAQ.

Email

dr.firas@uomosul.edu.iq

City

-

Orcid

-

Volume

55

Article Issue

4

Related Issue

36991

Issue Date

2022-10-01

Receive Date

2022-04-25

Publish Date

2022-10-01

Page Start

150

Page End

160

Print ISSN

1110-0451

Online ISSN

2090-4258

Link

https://ajnsa.journals.ekb.eg/article_263213.html

Detail API

https://ajnsa.journals.ekb.eg/service?article_code=263213

Order

13

Type

Original Article

Type Code

455

Publication Type

Journal

Publication Title

Arab Journal of Nuclear Sciences and Applications

Publication Link

https://ajnsa.journals.ekb.eg/

MainTitle

Fitting the Nuclear Binding Energy Coefficients for Liquid Drop Model and Adding a mathematical terms to the Closed Shell of Magic Nuclei

Details

Type

Article

Created At

22 Jan 2023