An extended thomas-fermi model with clustering in nuclei

In this study, a phenomenological theory of nuclei that includes clustering at the nuclear surface in a general form is presented. The theory elaborates the recently extracted large symmetry energy by Natowitz et al., at low densities of nuclear matter and is fully consistent with the static propert...

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Format:	Thesis
Language:	English
Subjects:	Thomas-Fermi theory Cluster theory (Nuclear physics) Nuclei Nuclear surface
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/4/Nooraihan.pdf
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spelling	my-unimap-779702023-03-06T00:02:54Z An extended thomas-fermi model with clustering in nuclei Zaliman, Sauli, Prof. Dr. In this study, a phenomenological theory of nuclei that includes clustering at the nuclear surface in a general form is presented. The theory elaborates the recently extracted large symmetry energy by Natowitz et al., at low densities of nuclear matter and is fully consistent with the static properties of nuclei. Clusters of all sizes and shapes together with medium alterations are included in a phenomenological way. Discussion about the symmetric nuclear matter properties are presented in detail. Arguments are stated, which bring to an equation of state of nuclear matter consistent with clustering in the low-density region. In addition, the justification and discussion about the properties of asymmetric nuclear matter are given. Due to the clustering, an interesting interpretation of the equation of state of asymmetric nuclear matter comes into view. An extended version of Thomas-Fermi theory is adopted as a framework for nuclei where it also consist of the phenomenological pairing and Wigner contributions. This theory relates the nuclear matter equation of state, which includes clustering at low densities, with clustering in nuclei at the nuclear surface. Calculations are carried out for different equations of state of nuclear matter. This study take into account binding energies of 2149 nuclei for N,Z  8. The significance of the quartic term in symmetry energy is illustrated at and below the saturation density of nuclear matter. It is demonstrated that it is greatly connected to the use of ab initio, a realistic equation of state of neutron matter, especially the contribution originating from the three neutron interactions and rather clustering. The causes for these are presented. The neutron skin thickness in nuclei is found to reduce significantly, for the reason of clustering. The developed theory predicts circumstances and methodologies to be examine both theoretically and experimentally. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77970 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/1/Page%201-24.pdf 2dc0af7158ffccf30b5347c47ef0b12b http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/2/Full%20text.pdf 0758420e33f3193345a0091ed3063245 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/4/Nooraihan.pdf 8c2b2dbb99a85a6ea740f180fdb1348d Universiti Malaysia Perlis (UniMAP) Thomas-Fermi theory Cluster theory (Nuclear physics) Nuclei Nuclear surface Institute of Engineering Mathematics
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Zaliman, Sauli, Prof. Dr.
topic	Thomas-Fermi theory Cluster theory (Nuclear physics) Nuclei Nuclear surface
spellingShingle	Thomas-Fermi theory Cluster theory (Nuclear physics) Nuclei Nuclear surface An extended thomas-fermi model with clustering in nuclei
description	In this study, a phenomenological theory of nuclei that includes clustering at the nuclear surface in a general form is presented. The theory elaborates the recently extracted large symmetry energy by Natowitz et al., at low densities of nuclear matter and is fully consistent with the static properties of nuclei. Clusters of all sizes and shapes together with medium alterations are included in a phenomenological way. Discussion about the symmetric nuclear matter properties are presented in detail. Arguments are stated, which bring to an equation of state of nuclear matter consistent with clustering in the low-density region. In addition, the justification and discussion about the properties of asymmetric nuclear matter are given. Due to the clustering, an interesting interpretation of the equation of state of asymmetric nuclear matter comes into view. An extended version of Thomas-Fermi theory is adopted as a framework for nuclei where it also consist of the phenomenological pairing and Wigner contributions. This theory relates the nuclear matter equation of state, which includes clustering at low densities, with clustering in nuclei at the nuclear surface. Calculations are carried out for different equations of state of nuclear matter. This study take into account binding energies of 2149 nuclei for N,Z  8. The significance of the quartic term in symmetry energy is illustrated at and below the saturation density of nuclear matter. It is demonstrated that it is greatly connected to the use of ab initio, a realistic equation of state of neutron matter, especially the contribution originating from the three neutron interactions and rather clustering. The causes for these are presented. The neutron skin thickness in nuclei is found to reduce significantly, for the reason of clustering. The developed theory predicts circumstances and methodologies to be examine both theoretically and experimentally.
format	Thesis
title	An extended thomas-fermi model with clustering in nuclei
title_short	An extended thomas-fermi model with clustering in nuclei
title_full	An extended thomas-fermi model with clustering in nuclei
title_fullStr	An extended thomas-fermi model with clustering in nuclei
title_full_unstemmed	An extended thomas-fermi model with clustering in nuclei
title_sort	extended thomas-fermi model with clustering in nuclei
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	Institute of Engineering Mathematics
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77970/4/Nooraihan.pdf
_version_	1776104256206536704

An extended thomas-fermi model with clustering in nuclei

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