%0 Journal Article
%T Production of helium projectile fragments in {16O－emulsion interactions at 4.5 A GeV/c
%A 张东海
%A 李振宇
%A 李俊生
%A 吴凤娟
%J 中国物理 B
%D 2004
%I 
%X The measurements of partial production cross sections of the multiple helium projectile fragments emitted at 4.5 A GeV/c {}^{16}O－Em interactions are reported. We have studied the production rate of helium projectile fragments due to fragmentation of {}^{16}O ions and compared it with that obtained from different projectiles at various energies. The dependence of on the mass number of the incident beams is formulated. The multiplicity distributions of the helium fragments produced in {}^{16}O－Em interactions at different energies exhibit Koba－Nielson－Olesen (KNO) scaling. The correlation of helium projectile fragments and target fragments is also investigated and it is found that the average of target fragments is increased with the decrease of the number of helium fragments in peripheral interactions.
%K 重离子碰撞
%K 氦抛射断面
%K 多重性相关
%K 碰撞截面
%K KNO定标
%K 原子核物理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=1815E07A64C358D83342A4797EAD0D9F&yid=D0E58B75BFD8E51C&vid=FC0714F8D2EB605D&iid=5D311CA918CA9A03&sid=1C7C31A28F5ECC6F&eid=076A4355FDA11BCF&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=26