Abstract

The helium hydride molecular ion, HeH⁺, is the simplest heteronuclear polar molecule and serves as a fundamental benchmark system for the investigation of multi-electron molecules and molecules with a permanent dipole [1,2]. The laser-induced fragmentation dynamics of HeH⁺ are measured using an ion beam of helium hydride and an isotopologue at various wavelengths and intensities [3]. These results are interpreted using reduced dimensionality solutions to the time-dependent Schrödinger equation and with simulations based on Dressed surface hopping [4] (see Fig. 1 (a-b)).

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