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The Angular Distribution of Light Composite Particle Projectile in Preequilibrium Reactions
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作者 shen qingbiao(china institute of atomic energy,p.o.box 275,beijing 102413) 《Chinese journal of nuclear physics》 1994年第2期160-169,共10页
Formulations of double differential cross sections of light composite particleconsidering (1,m) and (2,m) pickup type reactions simultaneously for semi-classicalmulti-step compound and direct processes are presented.T... Formulations of double differential cross sections of light composite particleconsidering (1,m) and (2,m) pickup type reactions simultaneously for semi-classicalmulti-step compound and direct processes are presented.The calculated results of crosssections,spectra,and double differential cross sections indicate that generally the con-tributions of the (2,m) pickup type reactions are about 15%-25% when the incident en-ergies are below 50 MeV but can become dominant when the incident energies areabove 50 MeV in some region of the outgoing energies and angles.The forward tenden-cy of the calculated angular distributions by (2,m) configuration is weaker than those by(1,m) configuration.For the reactions of outgoing composite particle with higher inci-dent energy,the multi-step direct process must be considered. 展开更多
关键词 Preequilibrium Composite PARTICLE Double DIFFERENTIAL CROSS SECTION
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