Molecular Reorientation in Collisions of OH+Ar

M. C. van Beek, G. Berden, H. L. Bethlem, and J. J. ter Meulen
Phys. Rev. Lett. 86, 4001 – Published 30 April 2001
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Abstract

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 252 with a preference for O-end collisions.

  • Received 4 October 2000

DOI:https://doi.org/10.1103/PhysRevLett.86.4001

©2001 American Physical Society

Authors & Affiliations

M. C. van Beek, G. Berden, H. L. Bethlem, and J. J. ter Meulen

  • Department of Molecular and Laser Physics, University of Nijmegen, P.O. Box 9010, 6500 GL Nijmegen, The Netherlands

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Vol. 86, Iss. 18 — 30 April 2001

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