Nuclear Friction Determined with He-ion Induced Fission Excitation Functions

YE Wei

doi:10.11804/NuclPhysRev.31.03.344

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YE Wei. Nuclear Friction Determined with He-ion Induced Fission Excitation Functions[J]. Nuclear Physics Review, 2014, 31(3): 344-349. doi: 10.11804/NuclPhysRev.31.03.344

Citation:

YE Wei. Nuclear Friction Determined with He-ion Induced Fission Excitation Functions[J]. Nuclear Physics Review, 2014, 31(3): 344-349. doi: 10.11804/NuclPhysRev.31.03.344

Nuclear Friction Determined with He-ion Induced Fission Excitation Functions

doi: 10.11804/NuclPhysRev.31.03.344

YE Wei

Department of Physics, Southeast University, Nanjing 210096, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-09-20

Abstract

The stochastic approach to ssion is employed to analyze measured ssion excitation functions in the reactions 3He+197Au, 3He+208Pb and 3He+186W. A pre-saddle friction strength of about 4 x 10²¹ s^-1is extracted by comparing theoretical calculations with experimental data. The important role of level-density parameters in accurately determining the strength of nuclear friction is revealed.It is further shown that high-energy conditions can enhance the sensitivity of ssion cross sections to nuclear dissipation.
- ssion excitation function,
- nuclear friction,
- Langevin model,
- level density parameter
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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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Nuclear Friction Determined with He-ion Induced Fission Excitation Functions

doi: 10.11804/NuclPhysRev.31.03.344

YE Wei

Department of Physics, Southeast University, Nanjing 210096, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2014-09-20

Key words:

Abstract: The stochastic approach to ssion is employed to analyze measured ssion excitation functions in the reactions 3He+197Au, 3He+208Pb and 3He+186W. A pre-saddle friction strength of about 4 x 10²¹ s^-1is extracted by comparing theoretical calculations with experimental data. The important role of level-density parameters in accurately determining the strength of nuclear friction is revealed.It is further shown that high-energy conditions can enhance the sensitivity of ssion cross sections to nuclear dissipation.

YE Wei. Nuclear Friction Determined with He-ion Induced Fission Excitation Functions[J]. Nuclear Physics Review, 2014, 31(3): 344-349. doi: 10.11804/NuclPhysRev.31.03.344

Citation:

YE Wei. Nuclear Friction Determined with He-ion Induced Fission Excitation Functions[J]. Nuclear Physics Review, 2014, 31(3): 344-349. doi: 10.11804/NuclPhysRev.31.03.344