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The generalized time-dependent generator coordinate method (TD-GCM),developed in the first part of this work and applied to small and largeamplitude collective motion in nuclei, is here extended to include pairingcorrelations. The correlated GCM nuclear wave function is expressed in terms oftime-dependent generator states and weight functions. The particle-hole channelof the effective interaction is determined by a Hamiltonian derived from anenergy density functional, while pairing is treated dynamically in the standardBCS approximation with time-dependent pairing tensor and single-particleoccupation probabilities. With the inclusion of pairing correlations, varioustime-dependent phenomena in open-shell nuclei can be described morerealistically. The model is applied to the description of saddle-to-scissiondynamics of induced fission. The generalized TD-GCM charge yields and totalkinetic energy distribution for the fission of $^{240}$Pu, are compared tothose obtained using the standard time-dependent density functional theory(TD-DFT) approach, and with available data.

Generalized time-dependent generator coordinate method for small and large amplitude collective motion (II): pairing correlations and fission