Longitudinal and transverse electron-nucleus scattering form factors of Mg25

Anwer A. Al-Sammarraie, Fadhil I. Sharrad, Norhasliza Yusof, and Hasan Abu Kassim
Phys. Rev. C 92, 034327 – Published 28 September 2015

Abstract

The one-body density-matrix elements obtained from the USDA Hamiltonian are used to calculate the electron-nucleus scattering form factors for the Mg25 nucleus. The longitudinal form factor calculations produce good agreements for all states in the first sequence whereas the shell-model predictions show a variation in results for the excitation states in the second sequence. The wave functions of radial single-particle matrix elements have been calculated with the Woods-Saxon, harmonic-oscillator, and Skyrme (Sk42) potentials. The results of the inelastic transverse form factors are in good agreement with the experimental data when using the Sk42 potential whereas the elastic magnetic scattering results show a significant difference in values compared with the experimental data. However the overall shape and other features of the form factors are satisfactory when using the harmonic-oscillator potential. The effective g factors were used as adjustable parameters in the oxbash code to describe the core-polarization effects in the transverse form factor calculations with the use of a harmonic-oscillator size parameter in the elastic magnetic scattering.

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  • Received 9 May 2015
  • Revised 24 June 2015

DOI:https://doi.org/10.1103/PhysRevC.92.034327

©2015 American Physical Society

Authors & Affiliations

Anwer A. Al-Sammarraie1,2,4,*, Fadhil I. Sharrad1,3,4,†, Norhasliza Yusof1,4, and Hasan Abu Kassim1,4

  • 1Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
  • 2Department of Chemistry, College of Education, University of Samarra, 34010 Selah Alden, Iraq
  • 3Department of Physics, College of Science, University of Kerbala, 56001Karbala, Iraq
  • 4Department of Physics, Quantum Science Centre, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

  • *anwer_ahmaed@yahoo.com
  • fadhil.altaie@gmail.com

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Vol. 92, Iss. 3 — September 2015

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