Commun. Comput. Phys., 1 (2006), pp. 886-897.


Investigation on Collision of Si2+ with H from Intermediate to High Projectile Energies

B. He 1*, J. G. Wang 1, C. L. Liu 1, Y. Ning 1, Y. B. Qiu 1, J. Yan 1, P. C. Stancil 2

1 Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, P. R. China.
2 Department of Physics and Astronomy and the Center for Simulational Physics, University of Georgia, Athens, GA 30602-2451, USA.

Received 30 November 2005; Accepted (in revised version) 21 March 2006

Abstract

Total and state-selective charge transfer, ionization and stripping cross sections due to the collision of Si$^{\mathrm{2+}}$ ion with atomic hydrogen are investigated using the classical-trajectory Monte-Carlo (CTMC) method in the collision energy from 1 keV/amu to 10 MeV/amu. Total electron capture rate coefficient is obtained in the temperature range from $10^5$ K$^{\mathrm{o}}$ to $10^8$ K$^{\mathrm{o}}$. Comparison with the data available shows that our CTMC results are reliable. The behaviors for these cross sections varying with the projectile energy are analyzed. A classical physical picture is presented to explain the reason behind the behaviors.


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Key words: CTMC method; charge transfer; ionization; stripping.


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Correspondence to: B. He , Key Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, P. R. China. Email: he_bin@mail.iapcm.ac.cn
 

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