{"id":13564,"date":"2026-07-27T10:20:27","date_gmt":"2026-07-27T07:20:27","guid":{"rendered":"https:\/\/en.csw.uobaghdad.edu.iq\/?p=13564"},"modified":"2026-07-27T10:30:52","modified_gmt":"2026-07-27T07:30:52","slug":"a-masters-thesis-at-the-college-of-science-for-women-discusses-the-calculation-of-density-of-states-using-a-new-formula-for-single-particle-level-density","status":"publish","type":"post","link":"https:\/\/en.csw.uobaghdad.edu.iq\/?p=13564","title":{"rendered":"A Master\u2019s Thesis at the College of Science for Women Discusses the Calculation of Density of States Using a New Formula for Single-Particle Level Density."},"content":{"rendered":"

[vc_row full_width=”stretch_row” rtl_reverse=”yes” css=”.vc_custom_1726859899671{margin-top: -150px !important;padding-top: 150px !important;padding-bottom: 60px !important;background-color: #f5f5f5 !important;}”][vc_column width=”1\/2″]

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<\/div>

Master\u2019s<\/span> Discussion<\/span><\/span><\/span><\/p>\n

The College of Science for Women at the University of Baghdad held a Master\u2019s thesis defense entitled \u201cCalculating the Density of States Using a New Formula for Single-Particle Level Density.\u201d<\/strong><\/p>\n

Submitted by: Tiba Hassan Madhi<\/p>\n<\/div><\/div><\/div>

<\/div>
<\/i>
Objectives of the Thesis<\/div><\/span>
[vc_column_text css=””]<\/p>\n
    \n
  1. \u00a0<\/strong>This thesis aimed to derive a new formula for the single-particle level density (g) using the curve-fitting method applied to experimental values of the level density parameter (a). Furthermore, it aimed to incorporate this derived g into one- and two-component Ericson formulas, as well as their corrected versions (Williams, pairing, and surface corrections), and to compare the resulting state densities with equidistant and non-equidistant spacing models to evaluate their agreement.”<\/li>\n<\/ol>\n

    [\/vc_column_text]<\/div><\/div>

    <\/i>
    Content of the Thesis<\/div><\/span>
    [vc_column_text css=””]The scientific value of this work lies in re-evaluating the applicability of Ericson\u2019s formulas for calculating nuclear state densities through the introduction of the newly derived g. Integrating this formula with Williams\u2019 corrected model\u2014alongside pairing and surface corrections\u2014effectively addresses physical factors neglected by standard equidistant and non-equidistant spacing models. This comprehensive integration enhances computational precision in predicting nuclear level densities, thereby strengthening its application in analyzing nuclear reaction mechanisms and compound nucleus models.”[\/vc_column_text]<\/div><\/div>
    <\/i>
    Recommendation of the Thesis<\/div><\/span>
    [vc_column_text css=””]<\/p>\n
      \n
    1. The results summarized the performance of the single-particle level density parameter g from fitting \u00a0derived from curve fitting in comparison to conventional models \u00a0the partial level density (PLD) results showed exact agreement and full consistency between g from fitting\u00a0 and g from ESM\u00a0 across Ericson, Williams, Surface Effect, and Pairing Correction for two-component) formulae, whereas other pairing corrections \u00a0for one-component, as well as Types III and IV) yielded slightly higher values when using g from ESM. On the other hand, all formulae and corrections based on the non-equidistant spacing model g from non-ESM produced significantly higher PLD values compared to those calculated using g from fitting.<\/li>\n<\/ol>\n

      [\/vc_column_text]<\/div><\/div>

      <\/i>
      Grade of the Thesis<\/div><\/span>
      [vc_column_text css=””]The researcher was awarded the grade of Excellent.[\/vc_column_text]<\/div><\/div>
      <\/i>
      Picture of the Committee members<\/div><\/span>
      [vc_column_text css=””]<\/p>\n
      \"\"<\/div>\n

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