Fig. 2: Product angular distributions.
From: Observation of the geometric phase effect in the H+HD→H2+D reaction below the conical intersection

The experimental (EXP) and theoretical (NGP and GP) DCSs in the forward scattering direction for the H2 products in the H+HD (v = 0, j = 0) → H2+D reaction at 2.28 eV. a and c Product ro-vibrational states are (v′, j′) = (0, 11) & (1, 7); b and d Product ro-vibrational states are (v′, j′) = (1, 9) & (2, 3). “&” connects two ro-vibrational states with very small energy differences, that correspond to the rings labeled by yellow arrows in the image (see Fig. 1 and Supplementary Fig. 3). The experimental errors standard deviation (SD) are displayed in gray. The theoretical results (blue lines) in panels a and b do not include the geometric phase (NGP), while the theoretical results (blue lines) in panels c and d do include it (GP).