Excited state dynamics of protonated keto uracil: intersystem crossing pathways in competition Jordan Dezalay, Michel Broquier, Satchin Soorkia and Gilles Grégoire Eur. Phys. J. D, 75 1 (2021) 17 Published online: 21 January 2021 DOI: 10.1140/epjd/s10053-020-00017-z