Molecular reorientation in collisions of OH + Ar.
نویسندگان
چکیده
Orientational effects in rotationally elastic collisions of OH with Ar were studied in a crossed molecular beam setup. A static electric field was applied to orient the molecules before the collision. After the collision the orientation was measured by using a narrow-band laser system to probe the Stark-split states corresponding to different orientations. Differential and integral cross sections for reorientation of the molecular axis have been determined as a function of the initial orientation. The cross section for reorientation by one quantum is 25 A2 with a preference for O-end collisions.
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ورودعنوان ژورنال:
- Physical review letters
دوره 86 18 شماره
صفحات -
تاریخ انتشار 2001