首页|Generalized time-dependent generator coordinate method for induced fission dynamics

Generalized time-dependent generator coordinate method for induced fission dynamics

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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 proba-bilities.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.

nuclear density functional theorygenerator coordinate methodfission dynamics

B.Li、D.Vretenar、T.Nik?i?、J.Zhao、P.W.Zhao、J.Meng

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State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China

Physics Department,Faculty of Science,University of Zagreb,10000 Zagreb,Croatia

Center for Circuits and Systems,Peng Cheng Laboratory,Shenzhen 518055,China

Highend Foreign Experts Plan of China,the National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaCroatian Government and European Union through the European Regional Development Fundthe Competitiveness and Cohesion OperatCroatian Science Foundation under the project Uncertainty quantification within the nuclear energy density framework

Contract 2018YFA04044001207013100111875075119350031197503112141501KK.01.1.1.01.0004IP-2018-01-5987

2024

物理学前沿
高等教育出版社

物理学前沿

CSTPCD
影响因子:0.816
ISSN:2095-0462
年,卷(期):2024.19(4)