“Electron attachment to cations in water by Interatomic Coulombic Electron Capture”

Interatomic Coulombic Electron Capture (ICEC) is an environment-enabled electron capture: it is a unique inelastic electron scattering process in which a free electron can efficiently at- tach to a quantum system by transferring the re- leased excess energy to a neighbor which is then ionized [1, 2]. This transfer can take place over large distances and has thus specific physical implications. For instance, it reduces one species (electron attachment) while oxydating another within the environment.

ICEC leads to a strong enhancement of the electron capture cross sections [3, 4]. We will report on the ICEC process in microhydrated cations. Our results show that the presence of water molecules increases significantly the elec- tron attachment cross sections to the cations due to ICEC. Furthermore, we will show that the ICEC cross sections exhibit clear Fano pro- files. The latter stem from the interferences between the ICEC final states and resonant states in which the incoming electron temporarily binds to the systems. Due to these interferences, the ICEC cross sections can be substantially enhanced or suppressed.

Transmisión en vivo por: https://bit.ly/YouTube_ICF

Participante: Prof. Dr. Nicolas Sisourat

Institución: Paris La Sorbonne (Laboratoire de Chimie Physique - Matière et Rayonnement)

Fecha y hora: Este evento terminó el Miércoles, 20 de Septiembre de 2023