“…Such theoretical work provides excellent data for comparison with surface dynamics experiments under well-controlled UHV conditions. A classical experimental approach probes the entrance channel of the reaction pathway by employing pulsed molecular beams of reactants to initiate the surface reaction ( Barker and Auerbach, 1984 ; Kleyn et al, 1996 ; Sitz, 2002 ; Kleyn, 2003 ; Golibrzuch et al, 2015 ; Chadwick and Beck, 2016 ; Vattuone and Okada, 2020 ; Shen et al, 2022 ). Seeding reactants in different carrier gases allows for modification of the incident translational energy.…”