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首页> 外文期刊>Physical review, C >Dynamical and many-body correlation effects in the kinetic energy spectra of isotopes produced in nuclear multifragmentation
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Dynamical and many-body correlation effects in the kinetic energy spectra of isotopes produced in nuclear multifragmentation

机译：在核多边沉积中产生的同位素动力学和许多身体相关效应

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摘要

The properties of the kinetic energy spectra of light isotopes produced in the breakup of a nuclear source and during the de-excitation of its products are examined. The initial stage, at which the hot fragments are created, is modeled by the statistical multifragmentation model, whereas the Weisskopf-Ewing evaporation treatment is adopted to describe the subsequent fragment de-excitation, as they follow their classical trajectories dictated by the Coulomb repulsion among them. The energy spectra obtained are compared to available experimental data. The influence of the fusion cross section entering into the evaporation treatment is investigated and its influence on the qualitative aspects of the energy spectra turns out to be small. Although these aspects can be fairly well described by the model, the underlying physics associated with the quantitative discrepancies remains to be understood.
机译：检查了在核来源分解和在其产品的去激发过程中产生的光同位素的动能光谱的性质。 形成热碎片的初始阶段由统计多分流模型建模，而采用Weisskopf-eWing蒸发处理来描述随后的片段脱离激励，因为它们遵循由库仑排斥所说的古典轨迹 他们。 获得的能谱与可用的实验数据进行比较。 研究了进入蒸发处理的融合横截面的影响，并对能谱的定性方面的影响变小。 虽然这些方面可以通过模型相当良好地描述，但与定量差异相关的潜在物理仍有待理解。

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  • 来源
    《Physical review, C》 |2018年第3期|共7页
  • 作者

    Souza S. R.; Donangelo R.; Lynch W. G.; Tsang M. B.;

  • 作者单位

    Univ Fed Rio de Janeiro Inst Fis Cidade Univ CP 68528 BR-21941972 Rio De Janeiro Brazil;

    Univ Fed Rio de Janeiro Inst Fis Cidade Univ CP 68528 BR-21941972 Rio De Janeiro Brazil;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

    Michigan State Univ Natl Superconducting Cyclotron Lab E Lansing MI 48824 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
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