Knowledge Bank

$H2$-noble gas dimers $(H2-H2,-Ne,-Ar$ and $-Kr)$ are investigated employing the Ramsey double coil technique to determine the hyperfine structure splittings in the rf-region. A more refined analysis (for earlier work see ref. 1) leads to a very sensitive test of the angle dependent part of the intermolecular potential, for intermolecular distances between the turning points of the bound states. A comparison with potential information from collision experiments will be presented.