J. Phys. II France
Volume 7, Numéro 4, April 1997
Page(s) 519 - 522
DOI: 10.1051/jp2:1997143
J. Phys. II France 7 (1997) 519-522

Total and Single Differential Cross Sections for the Electron Impact Ionization of the Ground State of Helium

Th. Subodh Chandra Singh1, Keka Basu Choudhury2, M. Babuyaima Singh3, N.C. Deb4, S.C. Mukherjee4 and P.S. Mazumdar3

1  Department of Physics, Thoubal College, Thoubal 795128 Manipur, India
2  Department of Physics, B.K.C. College, 111/2 B.T. Road, Bonhooghly, Calcutta 700035, West Bengal, India
3  Department of Physics, School of Science, Manipur University, Canchipur, Imphal 795003, Manipur, India
4  Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700032, West Bengal, India

(Received 2 August 1996, received in final form 3 January 1997, accepted 6 January 1997)

Total cross sections (TCS) and single differential cross sections (SDCS) have been computed for the single ionization of the ground state of helium by electron impact in a distorted wave formalism which takes into account the effects of the initial and final channel distortions. The present TCS and SDCS results are in fair agreement with the measured values and other theoretical predictions for the incident electron energy $E_{\rm i} > 150$ eV.

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