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Calculations of state-selective differential cross sections for charge transfer in collisions between O~(3+) and H_2

Chi BaoQian ¹ Liu Ling ² Wang JianGuo ²

文摘	The non-dissociative charge-transfer processes in collisions between O~(3+) and H_2 are investigated by using the quantum-mechanical molecular-orbital coupled-channel (QMOCC) method. The adiabatic potentials and radial coupling matrix elements utilized in the QMOCC calculations are obtained with the spin-coupled valence-bond approach. Electronic and vibrational state-selective differential cross sections are presented for projectile energies of 0.1, 1.0 and 10.0 eV/u in the H_2 orientation angles of 45° and 89°. The electronic and the vibrational state-selective differential cross sections show similar behaviours: they decrease as the scattering angle increases, and beyond a specific angle the oscillating structures appear. Moreover, it is also found that the vibrational state-selective differential cross sections are strongly orientation-dependent, which provides a possibility to determine the orientations of molecule H_2 by identifying the vibrational state-selective differential scattering processes.
来源	Chinese Physics. B ,2008,17(8):2890-2896 【核心库】
DOI	10.1088/1674-1056/17/8/023
关键词	charge transfer ; molecular-orbital coupled-channel method ; infinite-order sudden approximation ; state-selective differential cross sections
地址	1. College of Science, Shenyang Science and Technology University, Shenyang, 110168 2. Institute of Applied Physics and Computational Mathematics, Beijing, 100088
语种	英文
ISSN	1674-1056
学科	物理学
基金	国家自然科学基金
文献收藏号	CSCD:3331795

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