Journal
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
Volume 10, Issue 10, Pages 2422-2427Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpclett.9b00847
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Funding
- Army Research Office [W911NF-14-1-0378]
- Air Force Office of Scientific Research [AFOSR FA9550-16-1-0018]
- Department of Energy [DE-SC-0015997]
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State-to-state differential cross sections for rotationally inelastic collisions of vibrationally excited NO with Ar have been measured in a near-copropagating crossed beam experiment at collision energies of 530 and 30 cm(-1). Stimulated emission pumping (SEP) to prepare NO in specific rovibrational levels is coupled with direct-current slice velocity map imaging to obtain a direct measurement of the differential cross sections. The use of nearly copropagating beams to achieve low NO-Ar collision energies and broad collision energy tuning capability are also demonstrated. The experimental differential cross sections (DCSs) for NO in v = 10 in specific rotational and parity states are compared with the corresponding DCSs predicted for NO in v = 0 obtained from quantum mechanical close coupling calculations to highlight the differences between the NO(v = 10)-Ar and NO(v = 0)-Ar interaction potentials.
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