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Three dimensional quantum dynamics of (H-, H-2) and its isotopic variants

机译:(H-,H-2)及其同位素变体的三维量子动力学

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摘要

We present the results of a time-dependent quantum mechanical investigation using centrifugal sudden approximation in the form of reaction probability as a function of collision energy (E-trans) in the range 0.3-3.0 eV for a range of total angular momentum (J) values and the excitation function sigma(E-trans) for the exchange reaction H- + H-2 (v = 0, j = 0) -> H-2 + H- and its isotopic variants in three dimensions on an accurate ab initio potential energy surface published recently (J. Chem. Phys. 2004, 121, 9343). The excitation function results are shown to be in excellent agreement with those obtained from crossed beam measurements by Zimmer and Linder for H- + D-2 collisions for energies below the threshold for electron detachment channel and somewhat larger than the most recent results of Haufler et al. for (H-, D-2) and (D-, H-2) collisions.
机译:我们提出了一个时间依赖性量子力学研究的结果,该结果使用离心突然近似作为反应概率形式的函数,在一定范围的总角动量(J)中作为碰撞能量(E-trans)的函数,范围为0.3-3.0 eV交换反应H- + H-2(v = 0,j = 0)-> H-2 + H-及其同位素变体的三个维度在准确的从头算的数值和激发函数sigma(E-trans)势能表面最近发表(J.Chem.Phys.2004,121,9343)。激发函数的结果与Zimmer和Linder对H- + D-2碰撞的能量低于电子脱离通道阈值的交叉束测量获得的结果非常吻合,并且比Haufler等人的最新结果要大。等(H-,D-2)和(D-,H-2)碰撞。

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