High-resolution laser spectroscopy of LiAr: Improved interaction potential and spin-rotation-coupling in the ground state X ~2#SIGMA#~+

摘要

The spin-rotation coupling constnat #gamma# has been determined to be -0.15(6)(centre dot)10~(-3) cm~(-1) for vibrational levels v=0, 1, and 2 of the X~2#SIGMA#~+ state of ~7LiAr by means of an analysis fo the high-resolution absorption spectrum due to the A <- X transition in the 670-677 nm region.