Cold Reactive Collisions between laser-cooled ions and velocity-selected neutral molecules.

S Willitsch, MT Bell, AD Gingell, SR Procter, TP Softley

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    185 Citations (Scopus)

    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.
    Original languageEnglish
    Pages (from-to)043203
    Number of pages1
    JournalPhysical Review Letters
    Volume100
    Publication statusPublished - 1 Feb 2008

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