| ATOMIC AND MOLECULAR PHYSICS |
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Product Rotational Polarization in the Li+HF ( v=0, j=0) Reaction and Its Isotopic Variants |
| CHENG Jie, YUE Xian-Fang**
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Department of Physics and Information Engineering, Jining University, Jining 273155
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| Cite this article: |
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CHENG Jie, YUE Xian-Fang 2011 Chin. Phys. Lett. 28 083102 |
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Abstract Product rotational polarization in the title reactions is investigated by employing the quasi-classical trajectory method. An accurate ground 12A' potential energy surface [J. Chem. Phys. 107 (1997) 10085] and a collision energy of 110 meV are adopted in these calculations. The commonly used rotational alignment parameter A0(2) and the three angular distributions P(θr), P(φr), and P(θr ,φr) (θr and φr being the polar angles of the product angular momentum) are computed in the c.m. frame to gain insight into the product rotational alignment and orientation. It is found that the product rotational angular momentum prefers not only to align perpendicular to the reagent relative velocity vector k but also orientate along the negative y axis, which is successfully interpreted by an impulsive mode. The isotope mass effect on the product rotational polarization is also revealed and discussed.
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| Keywords:
31.15.Ap
34.50.Lf
31.15.Bh
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Received: 14 May 2011
Published: 28 July 2011
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