fig2
Figure 2. EXAFS cumulants (A) C2, (B) C3, and (C) C4 of diatomic Br2. The blue points with error bars are the experimental cumulants determined by the Br K-edge EXAFS analysis, while the red and green lines are the theoretical ones calculated by the quantum statistical perturbation theory [eqs. (9-11)] and by the classical limit [eqs. (12,13)].
