Final-state distribution for Na(3PJ)+Na(3PJ′)→Na(nLJ″)+Na(3S1/2) collisional excitation transfer

Abstract
We report the ratio of rate coefficients for the excitation-transfer reaction Na(3PJ)+Na(3PJ′)→Na(nLJ″)+Na(3S1/2), which has sometimes been labeled energy pooling, measured in a cell at T=640 K. Rate-coefficient ratios are given for nLJ″=4D3/2, 4D5/2, 4F5/2, 4F7/2, and 5S1/2, each for J=J′=1/2 and 3/2. We also report the nLJ″ ratios when the 3P states are populated in nearly statistical ratios; these are related to the rate coefficients when J=1/2 and J′=3/2.