title: Cold Reactive Collisions between laser-cooled ions and velocity-selected neutral molecules.
abstract: We report a new experimental method to study reactive ion-molecule collisions at very low temperatures. A source of laser-cooled ions in a linear Paul trap has been combined with a quadrupole-guide velocity selector to investigate the reaction of Ca+ with CH3F at collision energies E[over](coll)/k(B)> or =1 K with single-particle sensitivity. The technique represents a general approach to study reactive collisions between ions and polar molecules over a wide temperature range down to the cold regime.
authors: Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, United Kingdom. stefan.willitsch@chem.ox.ac.uk
authors: Stefan
authors: S
authors: Willitsch
authors: Martin T
authors: MT
authors: Bell
authors: Alexander D
authors: AD
authors: Gingell
authors: Simon R
authors: SR
authors: Procter
authors: Timothy P
authors: TP
authors: Softley