Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure

YE Wei

Chinese Physics C> 2005, Vol. 29> Issue(3) : 268-272

Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure

YE Wei ^,

Department of Physics,Southeast University,Nanjing 210096,China

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Abstract：
The shell effects on the particle evaporation for those nuclei near magic number,namely,²⁰⁴Pb,²⁰⁸Pb and ²¹²Pb as well as ¹²⁸Sn,¹³²Sn and ¹³⁶Sn,are investigated via a diffusion model.Calculations show that shell has an effect on the isospin dependence of particle emission, and that the magnitude of this shell effect is related to the spin and excitation energy of compound systems.It is found that angular momentum plays a significant role in the shell effects on the isospin-dependent particle emission while high excitation energy weakens such shell effects.

References

[1]

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YE Wei. Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure[J]. Chinese Physics C, 2005, 29(3): 268-272.

YE Wei. Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure[J]. Chinese Physics C, 2005, 29(3): 268-272. shu

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Received: 2004-06-22
Revised: 1900-01-01

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通讯作者: 陈斌, [email protected]

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沈阳化工大学材料科学与工程学院沈阳 110142

Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure

Corresponding author: YE Wei,

Department of Physics,Southeast University,Nanjing 210096,China

Received Date: 2004-06-22

Accepted Date: 1900-01-01

Available Online: 2005-03-05

Abstract: The shell effects on the particle evaporation for those nuclei near magic number,namely,²⁰⁴Pb,²⁰⁸Pb and ²¹²Pb as well as ¹²⁸Sn,¹³²Sn and ¹³⁶Sn,are investigated via a diffusion model.Calculations show that shell has an effect on the isospin dependence of particle emission, and that the magnitude of this shell effect is related to the spin and excitation energy of compound systems.It is found that angular momentum plays a significant role in the shell effects on the isospin-dependent particle emission while high excitation energy weakens such shell effects.

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Dependence of Isospin Effects of Particle Evaporation on the Nuclear Shell Structure

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