Three-body recombination, or ternary association, is a termolecular reaction in which three
particles collide, forming a bound state between two, whereas the third escapes freely …

The electron impact ionization of helium droplets doped with ethylene molecules and
clusters yields diverse CXH Y+ cations embedded in the droplets. The ionization primarily …

Here, we show that electron impact ionization of helium (He) droplets doped with water
molecules and clusters yield water and Zundel cations embedded in the droplets consisting …

Little is known about how rotating molecular ions interact with multiple He 4 atoms and how
this relates to microscopic superfluidity. Here, we use infrared spectroscopy to investigate …

Observation of the free rotation of molecules in helium droplets enabled microscopic study of
interaction of quantum rotors with a superfluid environment at T= 0.4 K. This work extends …

Infrared (IR) spectra of several hydrocarbon cations are reported, namely CH3+, CH4+,
CH5+, CH5+ (CH4) and C2H5+. The spectra were generated from weakly-bound helium …

Here, we describe our pulsed helium droplet apparatus for spectroscopy of molecular ions.
Our approach involves the doping of the droplets of about 10 nm in diameter with precursor …

Due to the weak interactions of He atoms with neutral molecules and ions, the preparation of
size-selected clusters for the spectroscopic characterization of their structures, energies, and …

Mass spectrometry is of paramount importance in many studies of pristine and doped helium
droplets. Here, we attempt to review the body of work that has been performed in this field …