Matching problem for primary and secondary signals in dual-phase TPC detectors

TL;DR

This paper addresses the challenge of matching primary and secondary signals in dual-phase TPC detectors, proposing an algorithmic solution based on stable marriage principles to improve signal association accuracy.

Contribution

It introduces a novel approach applying Gale-Shapley algorithm to the signal matching problem in dual-phase TPC detectors, enhancing matching reliability.

Findings

Gale-Shapley algorithm effectively matches signals with delays up to milliseconds.

The proposed method improves signal matching accuracy in high-rate environments.

The approach offers a systematic solution to a complex signal association problem.

Abstract

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.