35 citations · 37 across the 10 of their papers we have counts for
3 papers · 1 filter
The weak decay constant of positronium
Milena Piotrowska, Francesco Giacosa
The positronium, as the lightest purely leptonic bound state, provides an ideal testing ground for a quantum field--theoretical (QFT) description of composite systems. While its el…
Two-exponential decay of Acridine Orange
Francesco Giacosa, Anna Kolbus, Krzysztof Kyziol +4
In this work, we experimentally study the fluorescence decay of Acridine Orange at late times, in order to test whether a late-time power-law behaviour emerges, a feature expected…
Quantum Late-Time Decay and Channel Dependence
Francesco Giacosa, Anna Kolbus, Krzysztof Kyziol +4
Quantum mechanics predicts deviations from exponential decay at short and long times, yet experimental evidence is limited. We report a power-law tail after 10 lifetimes in t…