Particle Evaporation in the Fission Process of Nuclei <SUP>100,104</SUP>Sn

YE Wei

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2006, Vol. 30> Issue(3) : 217-219

Particle Evaporation in the Fission Process of Nuclei ^100,104Sn

YE Wei ^,

Department of Physics,Southeast University, Nanjing 210096, China

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Abstract：
The particle evaporation in the fission process of ¹⁰⁰Sn is studied using a diffusion model. It is shown that the shell influences strongly the proton emission whereas its effect on neutron emission is negligible, in contrast with the case of ¹³²Sn. It is due to the effect of the difference of neutron-to-proton ratio, N/Z,of the systems. This conclusion is further verified by comparing particle emission between ¹⁰⁰Sn and ¹⁰⁴Sn. Calculations indicate that high excitation energy weakens this N/Z effect.

References

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. Shrivastrva A et al. Phys. Rev. Lett., 1999, 82: 699; Ma-hata K et al. Phys. Rev., 2002, C65: 034613; Karamian SA et al. Eur. Phys. J., 2003, A17:492. Back B B et al. Phys. Rev., 1999, C60:0446023. YE W. High Energy Phys. and Nucl. Phys., 2003, 27(9):798.(in chinese)(叶巍.高能物理与核物理,2003, 27(9): 798)4. LU Z D et al. Z. Phys., 1986, A323: 477; Phys. Rev., 1990,C42: 707; YE W et al. Z. Phys., 1997, A359: 385; Eur.Phys. J., 2003, A18: 5715. Delagrange H et al. Z. Phys., 1990, A323: 4376. Sierk A J. Phys. Rev., 1986, C33: 20397. Myers W D, Swiatecki W J. LBL Preprint, 1994, LBL-36803; Nucl. Phys., 1996, A601: 1418. Ignatyuk A V et al. Sov. Nucl. Phys., 1975, 21: 2559. Arimoto Y et al. Phys. Rev., 1999, C59: 796; 1997, C55:1011(R)

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YE Wei. Particle Evaporation in the Fission Process of Nuclei ^100,104Sn[J]. Chinese Physics C, 2006, 30(3): 217-219.

YE Wei. Particle Evaporation in the Fission Process of Nuclei ^100,104Sn[J]. Chinese Physics C, 2006, 30(3): 217-219. shu

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Received: 2005-04-12
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Particle Evaporation in the Fission Process of Nuclei ^100,104Sn

YE Wei ^,

Corresponding author: YE Wei,

Department of Physics,Southeast University, Nanjing 210096, China

Received Date: 2005-04-12
Accepted Date: 1900-01-01
Available Online: 2006-03-05

Abstract: The particle evaporation in the fission process of ¹⁰⁰Sn is studied using a diffusion model. It is shown that the shell influences strongly the proton emission whereas its effect on neutron emission is negligible, in contrast with the case of ¹³²Sn. It is due to the effect of the difference of neutron-to-proton ratio, N/Z,of the systems. This conclusion is further verified by comparing particle emission between ¹⁰⁰Sn and ¹⁰⁴Sn. Calculations indicate that high excitation energy weakens this N/Z effect.