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Commun. Comput. Phys., 1 (2006), pp. 886-897. |
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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. Key words: CTMC method; charge transfer; ionization; stripping. 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 |