EXCHANGE EFFECTS AND COLLISION MECHANISMS IN (e, 2e) PROCESSES

doi:10.1088/1004-423X/7/7/001

Abstract

Abstract 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.

Received: 21 November 1997
Revised: 19 January 1998
Accepted manuscript online:

PACS:	34.80.Dp	(Atomic excitation and ionization)
	34.10.+x	(General theories and models of atomic and molecular collisions and interactions (including statistical theories, transition state, stochastic and trajectory models, etc.))

Fund: Project supported by the National Natural Science Foundation of China, the National Education Foundation of China and by the Education Foundation of Anhui province, China.

Cite this article:

Chen Zhang-jin (陈长进), Ni Zhi-xiang (倪致祥), Shi Qi-cun (施启存), Xu Ke-zun (徐克尊) EXCHANGE EFFECTS AND COLLISION MECHANISMS IN (e, 2e) PROCESSES 1998 Acta Physica Sinica (Overseas Edition) 7 481

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