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A study of proton-induced spallation reactions by the improved quantum molecular dynamics model plus statistical decay models

Li Ou et al 2009 J. Phys. G: Nucl. Part. Phys. 36 125104 (12pp)   doi: 10.1088/0954-3899/36/12/125104  Help

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Li Ou1,2, Zhuxia Li3, Xizhen Wu3, Junlong Tian4 and Weili Sun2
1 National Key Laboratory of Computational Physics, Beijing, 100088, People's Republic of China
2 Institute of Applied Physics and Computational Mathematics, Beijing, 100088, People's Republic of China
3 China Institute of Atomic Energy, Beijing, 102413, People's Republic of China
4 School of Physics and Electrical Engineering, Anyang Normal University, Anyang, 455000, People's Republic of China
E-mail: only.ouli@gmail.com and lizwux@ciae.ac.cn

Abstract. The recent GSI data for proton-induced spallation reactions by using inverse kinematics are analyzed by the improved quantum molecular dynamics model (ImQMD05) merged with the generalized evaporation model (GEM2) and GEMINI model. We find that the model of ImQMD05+GEM2 reproduces the experimental data of mass and charge distributions for proton-induced spallation reactions on heavy targets (208Pb, 238U and 197Au) well and the model of ImQMD05+GEMINI reproduces the ones on light targets (56Fe) well. The experimental data for double differential cross sections of emitted neutrons and protons in intermediate energy proton-induced spallation reactions can also be reproduced well with the same models and this shows that they are not very sensitive to the merged statistical model.

Print publication: Issue 12 (December 2009)
Received 17 July 2009
Published 28 October 2009

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