Improvements of ultra-relativistic quantum molecular dynamics model simulated by spallation neutron data induced by 1.2 GeV protons on Al, Fe and Zr

被引：6

作者：

Abdel-Waged, K ^{[1
]}

机构：

[1] Benha Univ, Fac Sci, Dept Phys, Banha, Egypt

[2] Umm Al Qura Univ, Fac Sci Appl, Dept Phys, Makkah Unit 126, Mecca, Saudi Arabia

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2005年 / 31卷 / 07期

关键词：

D O I：

10.1088/0954-3899/31/7/018

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The ultra-relativistic quantum molecular dynamics (UrQMD) model is developed for neutron spallation production from approximate to 1 GeV proton-induced reactions. Improvements in the dynamical content of the standard UrQMD model include: (i) an initial ground state which reproduces the experimental root mean square radii; (ii) a momentum-dependent Pauli potential and (iii) medium-modified angular distributions for quasi-inelastic NN scattering and the reverse N Delta -> NN reaction. It is shown that, in conjunction with the generalized evaporation model, the improved UrQMD model is able to reproduce the whole energy-angle neutron double differential cross sections in the interactions of proton on Al, Fe and Zr at 1.2 GeV.

引用

页码：739 / 753

页数：15

共 39 条

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