We present experimental and theoretical studies of the He++ CH4 and He++ CD4 reactions
at collision energies in the kB·(0–10) K range. Helium atoms in a supersonic beam are …

We report high-resolution cw laser spectra of the symmetric stretching fundamental in
ammonia 14 NH 3 measured with a cavity ring-down setup for mid-IR transitions (around …

We introduce the basic concepts of symmetry breakings and approximate constants of the
motion in relation to time scales for molecular primary processes from yoctoseconds to …

We report results on nuclear spin symmetry conservation studied by high resolution
spectroscopy of relative line intensities for the A and E nuclear spin isomers of symmetric top …

We have investigated nuclear spin symmetry conservation and relaxation of water seeded in
argon or molecular oxygen using supersonic jet expansions probed by high-resolution …

We report high resolution infrared spectra in the CF stretching fundamental ranges of
trifluoromethylacetylene (CF 3− C≡ CH, 3, 3, 3-trifluoropropyne) and of tetrafluoromethane …

We have investigated nuclear spin symmetry conservation and relaxation of water seeded in
argon or molecular oxygen using supersonic jet expansions probed by high-resolution …

Spectroscopy is one of the main sources both of qualitative and quantitative information
about the quantum-mechanical structure and dynamics of atoms, molecules and ions [Merkt …

Superfluid helium nanodroplets serve a unique cryogenic host system ideal to prepare cold
molecules and clusters. Structures as well as dynamic processes can be examined by …