Mapping Excited-State Decay Mechanisms in Acetylacetone by Sub-20 fs Time-Resolved Photoelectron Spectroscopy - Stefano Severino; Flavia Aleotti; Lorenzo Mai; Aurora Crego; Fabio Medeghini; Fabio Frassetto; Luca Poletto; Matteo Lucchini; Francesco Segatta; Maurizio Reduzzi; Mauro Nisoli; Artur Nenov; et al. (Journal of the American Chemical Society, 2025)