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Chin. Phys. B, 2012, Vol. 21(7): 073403    DOI: 10.1088/1674-1056/21/7/073403
ATOMIC AND MOLECULAR PHYSICS Prev   Next  

Post collision interactions and polarization effect in (e, 2e) collisions of helium

Zang Shuang-Shuang, Ge Zi-Ming
Department of Physics, East China University of Science and Technology, Shanghai 200237, China
Abstract  A modified distorted-wave Born approximation (DWBA) method is used to calculate the triple differential cross sections (TDCSs) in a coplanar asymmetric geometry for the electron impact single ionization of a He (1s2) atom at intermediate and lower energies. The post-collision interaction and the polarization effect in (e, 2e) collisions of helium are considered in the calculations. The polarization potentials from the damping method and density functional theory (DFT) are compared. Theoretical results are compared with the recent experimental data.
Keywords:  post collision interactions      polarization potential      density-functional theory (DFT)      distorted wave Born approximation (DWBA)     
Received:  16 September 2011      Published:  01 June 2012
PACS:  34.80.Dp (Atomic excitation and ionization)  
Corresponding Authors:  Ge Zi-Ming     E-mail:  geziming@ecust.edu.cn

Cite this article: 

Zang Shuang-Shuang, Ge Zi-Ming Post collision interactions and polarization effect in (e, 2e) collisions of helium 2012 Chin. Phys. B 21 073403

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