Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems

YE Wei

Chinese Physics C> 2004, Vol. 28> Issue(1) : 73-77

Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems

YE Wei ^,

Department of Physics,Southeast University,Nanjing 210096,China

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Abstract：
The isospin effect of particle emission for fissioning isobaric sources ¹¹⁰Tc,¹¹⁰Pd,¹¹⁰In and for isotopic sources of ^110,117,124In were investigated within the framework of the Smoluchowski equation. Calculations show that the emission of prescission particles depends strongly on the isospin of the fission sources; With increasing isospin, neutron emission increases, but proton and α particle emission decrease; When a fissioning source has a larger isospin, light-charged particle emission is insensitive to the dissipation strength, indicating that for a light compound system with a high isospin, the multiplicity of proton and α particle is not a useful observable of extracting the magnitude of dissipation; The trend of various light particle emission with the isospin of fissioning systems is unrelated to the dissipation strength.

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[1]

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[20]	Chen Liewen , Zhang Xiaodong , Ge Lingxiao . Isospin Effects on Pre-equilibrium NucleonEmission in Heavy Ion Collisions. Chinese Physics C, 1996, 20(12): 1091-1096.

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YE Wei. Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems[J]. Chinese Physics C, 2004, 28(1): 73-77.

YE Wei. Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems[J]. Chinese Physics C, 2004, 28(1): 73-77. shu

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Received: 2003-04-12
Revised: 1900-01-01

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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

Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems

Corresponding author: YE Wei,

Department of Physics,Southeast University,Nanjing 210096,China

Received Date: 2003-04-12

Accepted Date: 1900-01-01

Available Online: 2004-01-05

Abstract: The isospin effect of particle emission for fissioning isobaric sources ¹¹⁰Tc,¹¹⁰Pd,¹¹⁰In and for isotopic sources of ^110,117,124In were investigated within the framework of the Smoluchowski equation. Calculations show that the emission of prescission particles depends strongly on the isospin of the fission sources; With increasing isospin, neutron emission increases, but proton and α particle emission decrease; When a fissioning source has a larger isospin, light-charged particle emission is insensitive to the dissipation strength, indicating that for a light compound system with a high isospin, the multiplicity of proton and α particle is not a useful observable of extracting the magnitude of dissipation; The trend of various light particle emission with the isospin of fissioning systems is unrelated to the dissipation strength.

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Effects of Isospin on Multiplicity of Prescission Particles of Light Fissioning Systems

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