State-to-state differential cross sections for rotationally inelastic multiplet-conserving and multiplet-changing collisions of NO(2Π1/2, j=0.5) with Ar

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Abstract
Crossed, pulsed molecular beam measurements of state‐to‐state differential cross sections have been carried out for scattering of NO(2Π1/2, j=<cf10;1;2≳) by Ar, at a kinetic energy of 442 cm−1. Differential cross sections are presented (1) as functions of center‐of‐mass (c.m.) scattering angle for multiplet‐conserving collisions 2Π1/2→2Π1/2 and final states j’=1.5, 12.5, and 14.5, and (2) as functions of final state j’ for both multiplet‐conserving and multiplet‐changing collisions 2Π1/2→2Π3/2, at a constant c.m. scattering angle of 50°. Rotational rainbow structure is seen in both types of data. Some of the results are compared with the coupled‐states calculations of Joswig, Andresen, and Schinke, J. Chem. Phys. 85, 1904 (1986).

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