Resonant scattering theory is applied to the calculation of e-H2 dissociative attachment cross sections near threshold for several vibrational and rotational states of the H2 molecule. Typical values just above threshold are, in cm2, 2.8×10−21 for the ground state (v=0, J=0), 8.3×10−20 for (1, 0), 1.0×10−18 for (2, 0), and 3.5×10−20 for (0, 10). The effect of rotational excitation is found to be significant, although it is not as large as suggested by Chen and Peacher.
Wadehra JM, Bardsley JN. Vibrational- and Rotational-State Dependence of Dissociative Attachment in e-H2 Collisions. Phys. Rev. Lett. 1978;41(26):1795-1798. doi: 10.1103/PhysRevLett.41.1795