Correction of Abrasion-Ablation Model of Intermediate Energy with Distributions of Nucleon Density in Nucleus

HU PeiGang; WU HeYu; JIN GenMing; LI ZuYu; HE ZhiYong; FU YanBiao; WANG HongWei; DUAN LiMin; ZHANG BaoGuo; DAI GuangXi

Chinese Physics C> 2000, Vol. 24> Issue(7) : 662-666

Correction of Abrasion-Ablation Model of Intermediate Energy with Distributions of Nucleon Density in Nucleus

Institute of Modern Physices,The Chinese Academy of Sciences,Lanzhou 730000,China

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Abstract：
Nucleon density distributions in nucleus (including neutron and proton)have been introduced into the Abrasion-Ablation model for the intermediate energy collision.Process of projectile fragmentation in the reaction of 30MeV/u ⁴⁰Ar+^natAg has been simulated with the model of corrected version. The results show that in the rather peripheral collisions there are obvious differences for the calculated cross sections with and without correction of nucleon density distributions in the model.The differences come from the effects of dispersion on the edge of nuclei. It has been verified by comparison with experimental results that reduction of mean energy of projectile-like fragments from beam energy is mainly caused by the action of friction.

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HU PeiGang, WU HeYu, JIN GenMing, LI ZuYu, HE ZhiYong, FU YanBiao, WANG HongWei, DUAN LiMin, ZHANG BaoGuo and DAI GuangXi. Correction of Abrasion-Ablation Model of Intermediate Energy with Distributions of Nucleon Density in Nucleus[J]. Chinese Physics C, 2000, 24(7): 662-666.

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Received: 1999-06-03
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

Correction of Abrasion-Ablation Model of Intermediate Energy with Distributions of Nucleon Density in Nucleus

Corresponding author: HU PeiGang,

Institute of Modern Physices,The Chinese Academy of Sciences,Lanzhou 730000,China

Received Date: 1999-06-03

Accepted Date: 1900-01-01

Available Online: 2000-07-05

Abstract: Nucleon density distributions in nucleus (including neutron and proton)have been introduced into the Abrasion-Ablation model for the intermediate energy collision.Process of projectile fragmentation in the reaction of 30MeV/u ⁴⁰Ar+^natAg has been simulated with the model of corrected version. The results show that in the rather peripheral collisions there are obvious differences for the calculated cross sections with and without correction of nucleon density distributions in the model.The differences come from the effects of dispersion on the edge of nuclei. It has been verified by comparison with experimental results that reduction of mean energy of projectile-like fragments from beam energy is mainly caused by the action of friction.

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Correction of Abrasion-Ablation Model of Intermediate Energy with Distributions of Nucleon Density in Nucleus

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