45 citations · 132 across the 18 of their papers we have counts for
19 papers
Late-Time Power Laws in Fluorescence Decays: Quantum Decay or Alternative Mechanisms?
Francesco Giacosa, Anna Kolbus, Krzysztof Kyziol +4
In quantum mechanics, the properties of an unstable system are closely related to its corresponding energy distribution. One of the predictions of the theory is the emergence of a…
Isospin-symmetry violation - kaons and beyond (ISO-BREAK 25: summary and outlook)
Marek Gazdzicki, Francesco Giacosa, Katarzyna Grebieszkow +40
This report summarizes the presentations and discussions during the ISO-BREAK 25 Workshop ``Isospin symmetry violation: kaons and beyond'', which was held at Jan Kochanowski Univer…
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…
Two-photon decay of para-positronium within a composite approach
Milena Piotrowska, Francesco Giacosa
The decay of the para-positronium into two photons is studied in the framework of a composite Quantum Field Theoretical approach. This amounts to the evaluation of the electron-pos…