Generalized time-dependent generator coordinate method for induced fission dynamics
B. Li1, D. Vretenar2,1(), T. Nikšić2,1, J. Zhao3, P. W. Zhao1(), J. Meng1()
1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China 2. Physics Department, Faculty of Science, University of Zagreb, 10000 Zagreb, Croatia 3. Center for Circuits and Systems, Peng Cheng Laboratory, Shenzhen 518055, China
The generalized time-dependent generator coordinate method (TD-GCM) is extended to include pairing correlations. The correlated GCM nuclear wave function is expressed in terms of time-dependent generator states and weight functions. The particle−hole channel of the effective interaction is determined by a Hamiltonian derived from an energy density functional, while pairing is treated dynamically in the standard BCS approximation with time-dependent pairing tensor and single-particle occupation probabilities. With the inclusion of pairing correlations, various time-dependent phenomena in open-shell nuclei can be described more realistically. The model is applied to the description of saddle-to-scission dynamics of induced fission. The generalized TD-GCM charge yields and total kinetic energy distribution for the fission of 240Pu, are compared to those obtained using the standard time-dependent density functional theory (TD-DFT) approach, and with available data.
Corresponding Author(s):
D. Vretenar,P. W. Zhao,J. Meng
引用本文:
. [J]. Frontiers of Physics, 2024, 19(4): 44201.
B. Li, D. Vretenar, T. Nikšić, J. Zhao, P. W. Zhao, J. Meng. Generalized time-dependent generator coordinate method for induced fission dynamics. Front. Phys. , 2024, 19(4): 44201.
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