Fig. 3: Product angular distributions.

a Experimentally measured angular distributions of the N2+ product in the v′ = 1 (blue) and 2 (red) levels at the COM collision energy of 1.58 eV for the charge-transfer reaction Ar+(2P1/2) + N2 → Ar+N2+(v′, J′). b Calculated N2+ product angular distribution by the trajectory surface-hopping method, and the zoomed-in distribution is shown in the inset.