Statistical fluctuations of negative parity levels in even mass nuclei

This study presents the first statistical analysis on the correlation of negative parity states. All the available experimental data of 1−&2− levels of the even mass nuclei in the 16≤A≤212 mass region are used to prepare the sequences and classified as their masses. Random matrix theory together...

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Autores principales:	T. Khatoni, H. Sabri
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Negative parity states Random matrix theory (RMT) Statistical correlation Averaged deformation parameters Physics QC1-999
Acceso en línea:	https://doaj.org/article/74b89ec8da614af3aff1f28c8b943be3
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spelling	oai:doaj.org-article:74b89ec8da614af3aff1f28c8b943be32021-12-04T04:32:44ZStatistical fluctuations of negative parity levels in even mass nuclei0370-269310.1016/j.physletb.2021.136780https://doaj.org/article/74b89ec8da614af3aff1f28c8b943be32021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0370269321007206https://doaj.org/toc/0370-2693This study presents the first statistical analysis on the correlation of negative parity states. All the available experimental data of 1−&2− levels of the even mass nuclei in the 16≤A≤212 mass region are used to prepare the sequences and classified as their masses. Random matrix theory together with a usual least - square procedure are used to extract the chaos measures of Berry – Robnik distribution function for different sequences in the framework of nearest neighbor spacing distribution. Also, we considered the chaotic degrees of these levels in relation to different modes of calculated deformations values and the shell model configuration of the last protons and neutrons of even mass nuclei. The results of this consideration suggest the most correlation of 1− levels in the A<50, mass area, but similar statistics of 2− levels are yield in the 150<A<200 region. The most GOE-like behavior of 1− levels is reported for sequences that the last protons lie in the d3/2 orbitals, and the neutrons filled the h9/2 orbitals, but for 2− levels, nuclei with 1h11/2 and 1i13/2 configurations for respectively, protons and neutrons, show the maximum correlation. Also, the results of this study suggest the most correlation of 1− levels for some mass regions which have the maximum values of the averaged quadrupole and hexacontatetrapole deformations.T. KhatoniH. SabriElsevierarticleNegative parity statesRandom matrix theory (RMT)Statistical correlationAveraged deformation parametersPhysicsQC1-999ENPhysics Letters B, Vol 823, Iss , Pp 136780- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Negative parity states Random matrix theory (RMT) Statistical correlation Averaged deformation parameters Physics QC1-999
spellingShingle	Negative parity states Random matrix theory (RMT) Statistical correlation Averaged deformation parameters Physics QC1-999 T. Khatoni H. Sabri Statistical fluctuations of negative parity levels in even mass nuclei
description	This study presents the first statistical analysis on the correlation of negative parity states. All the available experimental data of 1−&2− levels of the even mass nuclei in the 16≤A≤212 mass region are used to prepare the sequences and classified as their masses. Random matrix theory together with a usual least - square procedure are used to extract the chaos measures of Berry – Robnik distribution function for different sequences in the framework of nearest neighbor spacing distribution. Also, we considered the chaotic degrees of these levels in relation to different modes of calculated deformations values and the shell model configuration of the last protons and neutrons of even mass nuclei. The results of this consideration suggest the most correlation of 1− levels in the A<50, mass area, but similar statistics of 2− levels are yield in the 150<A<200 region. The most GOE-like behavior of 1− levels is reported for sequences that the last protons lie in the d3/2 orbitals, and the neutrons filled the h9/2 orbitals, but for 2− levels, nuclei with 1h11/2 and 1i13/2 configurations for respectively, protons and neutrons, show the maximum correlation. Also, the results of this study suggest the most correlation of 1− levels for some mass regions which have the maximum values of the averaged quadrupole and hexacontatetrapole deformations.
format	article
author	T. Khatoni H. Sabri
author_facet	T. Khatoni H. Sabri
author_sort	T. Khatoni
title	Statistical fluctuations of negative parity levels in even mass nuclei
title_short	Statistical fluctuations of negative parity levels in even mass nuclei
title_full	Statistical fluctuations of negative parity levels in even mass nuclei
title_fullStr	Statistical fluctuations of negative parity levels in even mass nuclei
title_full_unstemmed	Statistical fluctuations of negative parity levels in even mass nuclei
title_sort	statistical fluctuations of negative parity levels in even mass nuclei
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/74b89ec8da614af3aff1f28c8b943be3
work_keys_str_mv	AT tkhatoni statisticalfluctuationsofnegativeparitylevelsinevenmassnuclei AT hsabri statisticalfluctuationsofnegativeparitylevelsinevenmassnuclei
_version_	1718373038050770944

Statistical fluctuations of negative parity levels in even mass nuclei

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