A process in which an atomic or nuclear system acquires an additional particle. In general, a specification is added of the type of the captured particle or its energy.
Source:
PAC, 1994, 66, 2513. 'Nomenclature for radioanalytical chemistry (IUPAC Recommendations 1994)' on page 2516 (https://doi.org/10.1351/pac199466122513)