PARITY-RESOLVED ROTATIONALLY INELASTIC-COLLISIONS OF HEXAPOLE STATE-SELECTED NO((2)PI(1 2),J=1/2(-)) WITH AR/

Inelastic, state-to-state parity-resolved, relative cross sections for the NO((II1/2,)-I-2 J=1/2(-)) + Ar --> NO((II1/2,)-I-2 J(p')) + Ar co llision have been obtained in a crossed beam experiment. Initial state preparation of NO molecules is realized with 99% purity via the hexap ole state selection technique. The parity-resolved rotational state di stribution of NO product molecules is obtained by means of laser-induc ed fluorescence (LIF) spectroscopy on the gamma(0,0)-band. The experim ental cross sections are in agreement with those obtained previously i n a comparable study, but some discrepancies remain with results from close-coupling scattering calculations.