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Theoretical Nuclear Structure Physics

Theoretical Nuclear Structure Physics
理论核结构物理
批准号:
0070858
负责人:
Bruce Barrett
金额:
$32.3万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-06-15 至 2004-05-31

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中文摘要
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0070858Barrett Our goal is to understand the structure of atomic nuclei from first principles---namely, in terms of the free nucleon-nucleon (strong) interaction and many-body quantum mechanics. Toward this end, we havedeveloped a new "ab initio" shell-model approach, in which we treat all. A nucleons as active particles in an extremely large basis (model) space. We now have computer codes, which allow us to perform such calculations for nuclei up to A=16, i.e., 16 active nucleons, and have obtained reasonable and encouraging results for the light nuclei studied so far. We are presently performing detailed calculations for A=6 and 7 to study the rate of convergence of the binding energies, spectra, radii, etc., as the size of the model space is increased. A new computer code is now being tested to do calculations for 12C up to 10 million configuration space states, so that we can perform similar calculations for A=12 as we are now doing for A=6 and 7. One of our major accomplishments, to date, is the development of a technique for computing exactly the effective two-body shell-model interaction, which we have employed to solve the A=3 and 4 nucleon systems. From these exact solutions for A=3 and 4, we can extract the effective three-body and four-body interactions. We plan to utilize these effective three- and four-body interactions to construct an expansion for the effective A-nucleon shell-model interaction, which will greatly improve the convergence rate for our calculations. In the near future we will also include a real three-body interaction in our shell-model investigations.
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NSF-South Africa Workshop on Nuclear Physics, May 2011
  • 批准号:
    1029437
  • 项目类别:
    Standard Grant
  • 资助金额:
    $4.99万
  • 财政年份:
    2010
  • 负责人:
    Bruce Barrett
  • 依托单位:
New Directions in Nuclear Structure Theory
  • 批准号:
    0854912
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $45.35万
  • 财政年份:
    2009
  • 负责人:
    Bruce Barrett
  • 依托单位:
Nuclear Theory: Structure and Reactions
  • 批准号:
    0555396
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $46.72万
  • 财政年份:
    2006
  • 负责人:
    Bruce Barrett
  • 依托单位:
Microscopic Nuclear Structure Theory
  • 批准号:
    0244389
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $36.3万
  • 财政年份:
    2003
  • 负责人:
    Bruce Barrett
  • 依托单位:
国内基金
海外基金
Nuclear speckles支架蛋白SRRM2调控染色质高级结构的形成机制及功能研究
  • 批准号:
    22ZR1412400
  • 项目类别:
    省市级项目
  • 资助金额:
    --
  • 批准年份:
    2022
  • 负责人:
    胡士斌
  • 依托单位:
研究nuclear speckles对哺乳动物早期胚胎染色体高级结构重编程和胚胎发育的调控作用
  • 批准号:
    --
  • 项目类别:
    面上项目
  • 资助金额:
    58万元
  • 批准年份:
    2021
  • 负责人:
    柯玉文
  • 依托单位:
Mapping Quantum Chromodynamics by Nuclear Collisions at High and Moderate Energies
  • 批准号:
    11875153
  • 项目类别:
    面上项目
  • 资助金额:
    60.0万元
  • 批准年份:
    2018
  • 负责人:
    MARCO RUGGIERI
  • 依托单位: