  The problem of matching primary and secondary light signals, belonging to the
same event, is presented in the context of dual-phase time projection chambers.
In large-scale detectors, the secondary light emission could be delayed up to
order of milliseconds, which, combined with high signal rates, could make the
matching of the signals challenging. A possible approach is offered in the
framework of the Stable Marriage and the College Admission problem, for both of
which solutions are given by the Gale-Shapley algorithm.
