where and denote the electronic and nuclear equation of motion from κSE, as given in eqs 12 and 21, and where the additional terms are decay-of-mixing (DM) terms, which are explained in detail elsewhere. In tCSDM decoherence contribution to the change in the nuclear momentum is 53 (24) in which is the decoherence time, K is the pointer state, and is the decoherence vector for states I and K given by (25) where is the internal vibrational momentum, and a0 ≡ 1 bohr.