Probing Spin-Lifetime Correlations in Entangled Hyperon-AntiHyperon Pairs

Abstract: Quantum entanglement has now been demonstrated in several hadronic systems, revealing that non-classical spin correlations survive even through the strong-interaction hadronization process. To date, however, all studies have focused exclusively on angular observables, leaving the possibility untouched that quantum coherence might also influence the decay times of entangled partners. In this work we propose two data-driven tests - relative and absolute lifetime correlations - for Lambda-antiLambda pairs produced in high-energy collisions. By examining the opening-angle distribution in slices of Delta t and constructing a pair-wise lifetime correlator, we search for deviations from independent exponential decay that align with known spin correlations. Successful observation of lifetime correlations between entangled partners would demand a fundamental revision of quantum mechanics' framework for entanglement, extending the concept beyond its current theoretical boundaries.