Contribution of high energy configurations to longitudinal and transverse form factors in p- and sd-shell nuclei

Majeed, Fouad A.; Najim, Laith Ahmed

doi:10.1007/s12648-014-0622-3

Cited by 6 publications

(3 citation statements)

References 32 publications

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“…MSDI are succeeded in energy levels calculation for nuclei various. For example, previous studies of energy states for nuclei by using modified surface delta interaction [9,10,11,12,13,14].…”

Section: Methodsmentioning

confidence: 99%

Shell Model Calculations on Positive and Negative Parity States for 90Sr,90Y,92Nb and 92Zr Nuclei

hmed¹

2017

JK-Physics

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The excitation energies for both the positive and negative parities of 90Sr,90Y,92Nb and 92Zr isotopes have been calculated by applying nuclear shell model with in the 2d5/2,1g7/2, 2d3/2, 3s1/2 and 1h11/2 model space for neutrons in 90Sr and 92Zr nuclei, also the 2p1/2, 1g9/2 for proton and 2d5/2,3s1/2 for neutron specified as model space in 90Y nucleus. While, model space for 92Nb nucleus was comprised of 1g9/2 for proton and 2d5/2 for neutron. Modified surface delta interaction with Matlab program have been used to calculate the present theoretical results. The agreement between theoretical prediction and experiment values were good. we determine and confirm the angular momentum and parity of energy levels that are not determined and unconfirmed experimentally. In addition to that, new energy levels have been predicted for all the isotopes in this present work. This will add more information which increases the theoretical Knowledge for all isotopes with respect to energy levels.

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Section: Methodsmentioning

confidence: 99%

Shell Model Calculations on Positive and Negative Parity States for 90Sr,90Y,92Nb and 92Zr Nuclei

hmed¹

2017

JK-Physics

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“…The melting of the N = 20 shell for neutron-rich systems using the interaction tensor part contribution in SHF theory was investigated by Bhattacharya [14] for the nuclei 40,48 Ca and 56 Ni, as well as the new magic numbers are introduced at N = 16, 32. The core polarization effect is considered by using a microscopic theory that allows the excitation from the core nucleons and projects them to the model space with exciton energy 2 and 4 ω were conducted by Majeed and his collaborators, for some p, sd, and f p nuclei, show great success in describing the form factors compared to the observed data [15,16,17,18]. Shaimaa A. Abbas et al conducted a study to investigate the form factors and the related distribution of the charge density for the inelastic Coulomb C2 for 58,60,62 Ni and 64,66,68 Zn isotopes by utilizing the method of SHF with the parametrization of type (Sk35-Skzs * ).…”

Section: Introductionmentioning

confidence: 99%

Longitudinal and Transverse form Factors from $^{65}$Cu and $^{71}$Ga Nuclei

Obaid¹,

Majeed²

2022

Preprint

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In the present work, the inelastic electron scattering form factors, longitudinal and transverse for 65 Cu and 71 Ga nuclei lie in the fp-shell region are studied in the framework of the shell model. The calculation is performed in the (1f 5/2 ,2p 3/2 ,2p 1/2 ,1g 9/2 ) model space using jun45 effective interaction. The inelastic form factor is utilized by using the shape of Tassie and Bohr -Mottelson models with appropriate proton and neutron effective charges to account for the core-polarization effects contribution. The calculated form factors have been compared with available experimental data.

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“…The core polarization were calculated by employing harmonic oscillator (HO) and Skyrme-Hartree Fock (Skx) as residual interactions. Majeed et al [11] investigated the effect of the configuration of high energy for the positive and negative parity states form factors for longitudinal and transverse cases.…”

Section: Introductionmentioning

confidence: 99%

Nuclear structure study of [22,24]Ne and [24]Mg nuclei

Majeed

Obaid

2019

Rev. Mex. Fís.

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Shell model calculations based on large basis has been conducted to study the nuclear structure of $^{20}Ne$, $^{22}Ne$ and $^{24}Mg$ nuclei. The energy levels, inelastic electron scattering form factors and transition probabilities are discussed by considering the contribution of configurations with high-energy beyond the model space of sd-shell model space which is denoted as the core polarization (CP) effects.~The Core polarization is considered by taking the excitations of nucleus from the $1s$ and $1p$ core orbits and also from the valence $2s$ $1d$ shell orbit in to higher shells with $4\hbar\omega$. The effective interactions $USDA$ and $USDB$ are employed with $sd$ shell model space to perform the calculation and the core polarization are calculated with $MSDI$ as residual interaction.~The calculated energy level schemes, form factors and transition probabilities were compared with the corresponding experimental data. The effect of core polarization is found very important for the calculation of $B(C2)$, $B(C4)$ and form factors, and gives excellent results in comparison with the experimental data without including any adjustable parameters.

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Contribution of high energy configurations to longitudinal and transverse form factors in p- and sd-shell nuclei

Cited by 6 publications

References 32 publications

Shell Model Calculations on Positive and Negative Parity States for 90Sr,90Y,92Nb and 92Zr Nuclei

Shell Model Calculations on Positive and Negative Parity States for 90Sr,90Y,92Nb and 92Zr Nuclei

Longitudinal and Transverse form Factors from $^{65}$Cu and $^{71}$Ga Nuclei

Nuclear structure study of [22,24]Ne and [24]Mg nuclei

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