Novel Unstable Degree of Nuclear Fusion or Fission in a Five-parameter Dumbbell Model

SUN Qian; SHANGGUAN Danhua; BAO Jingdong

doi:10.11804/NuclPhysRev.31.01.001

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SUN Qian, SHANGGUAN Danhua, BAO Jingdong. Novel Unstable Degree of Nuclear Fusion or Fission in a Five-parameter Dumbbell Model[J]. Nuclear Physics Review, 2014, 31(1): 1-7. doi: 10.11804/NuclPhysRev.31.01.001

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SUN Qian, SHANGGUAN Danhua, BAO Jingdong. Novel Unstable Degree of Nuclear Fusion or Fission in a Five-parameter Dumbbell Model[J]. Nuclear Physics Review, 2014, 31(1): 1-7. doi: 10.11804/NuclPhysRev.31.01.001

Novel Unstable Degree of Nuclear Fusion or Fission in a Five-parameter Dumbbell Model

doi: 10.11804/NuclPhysRev.31.01.001

Department of Physics, Beijing Normal University, Beijing 100875, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-03-20

Abstract

The neck variable plays a key role in the dynamical processes of nuclear fusion or fission. Generally speaking, the definition for this variable is different for various parameterizations describing macroscopic nuclear shapes. In order to investigate the effects of increased neck in nuclear fusion, we extend the dumbbell parameterization by taking deformations of both the target and projectile into account. The potential energy surface (PES) with different shapes of nuclei is calculated, as well as the inertia mass and friction tensors. These calculations lay the foundation for Langevin dynamics. Analysis of the results shows that the neck variable in the proposed five-parameter dumbbell model is an unstable degree of freedom and play an important role in nuclear fusion.
- five-parameter dumbbell model,
- nuclear fusion,
- potential energy surface
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Novel Unstable Degree of Nuclear Fusion or Fission in a Five-parameter Dumbbell Model

doi: 10.11804/NuclPhysRev.31.01.001

Department of Physics, Beijing Normal University, Beijing 100875, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-03-20

Key words:

Abstract: The neck variable plays a key role in the dynamical processes of nuclear fusion or fission. Generally speaking, the definition for this variable is different for various parameterizations describing macroscopic nuclear shapes. In order to investigate the effects of increased neck in nuclear fusion, we extend the dumbbell parameterization by taking deformations of both the target and projectile into account. The potential energy surface (PES) with different shapes of nuclei is calculated, as well as the inertia mass and friction tensors. These calculations lay the foundation for Langevin dynamics. Analysis of the results shows that the neck variable in the proposed five-parameter dumbbell model is an unstable degree of freedom and play an important role in nuclear fusion.

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