%0 Journal Article
%T EXCHANGE EFFECTS AND COLLISION MECHANISMS IN (e, 2e) PROCESSES<br>
%A Chen Zhang-jin
%A Ni Zhi-xiang
%A Shi Qi-cun
%A Xu Ke-zun
%A <br>
%J 中国物理 B
%D 1998
%I 
%X In this work the triple differential cross sections for electron impact ionization of helium at an incident energy of 64.6 eV is considered in the coplanar symmetric energy-sharing and fixed relative angles of the two out-going electrons kinematics. A new collision process called triple-binary collision is identified. It has been shown that the ordinary double-binary collision process is excluded from the collision kinematics considered here. It has also been shown how the exchange effects symmetrically contribute to the peaks in the cross sections.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=4025AA3D61D31F0EBC66EB6E35614D28&yid=8CAA3A429E3EA654&vid=DF92D298D3FF1E6E&iid=DF92D298D3FF1E6E&sid=283B38DAD0D068F3&eid=036D726259190A01&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0