Role of dynamic pairing correlations in fission dynamics
| Autor: | Samuel A. Giuliani, L. M. Robledo, R. Bernard |
|---|---|
| Přispěvatelé: | Centre de Mathématiques et de Leurs Applications (CMLA), École normale supérieure - Cachan (ENS Cachan)-Centre National de la Recherche Scientifique (CNRS), Direction des Applications Militaires (DAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
Informática Particle number Nuclear Theory [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th] 010308 nuclear & particles physics Fission Energía Eléctrica FOS: Physical sciences Nuclear Structure 01 natural sciences Nuclear Theory (nucl-th) Mean field theory Quantum electrodynamics Pairing Neutron number 0103 physical sciences Potential energy surface Coulomb 010306 general physics Wave function |
| Zdroj: | Phys.Rev.C Phys.Rev.C, 2019, 99 (6), pp.064301. ⟨10.1103/PhysRevC.99.064301⟩ Physical Review C Physical Review C, American Physical Society, 2019, 99 (6), pp.064301. ⟨10.1103/PhysRevC.99.064301⟩ Physical Review C, ISSN 2469-9985, 2019, Vol. 99, No. 6 Archivo Digital UPM instname Physical Review C, 2019, 99 (6), pp.064301. ⟨10.1103/PhysRevC.99.064301⟩ Universidad Politécnica de Madrid |
| ISSN: | 2469-9985 2469-9993 |
| DOI: | 10.1103/PhysRevC.99.064301⟩ |
| Popis: | We study the role of dynamic pairing correlations in fission dynamics by considering intrinsic Hartree-Fock-Bogoliubov wave functions that are obtained by minimizing the particle number projected energy. For the restricted variational space, the set of self-consistent wave functions with different values of proton and neutron number particle fluctuations are considered. The particle number projected energy is used to define potential energy surface for fission whereas collective inertias are computed within the traditional formulas for the intrinsic states. The results show that the effect of the restricted variation after particle number projection in the potential energy surface is small while collective inertias substantially decrease. On the other hand, we show that this quenching is strongly mitigated when Coulomb antipairing is considered. In the light of these beyond mean-field calculations, the validity of traditional fission calculations is discussed. 7 pages, 3 Figures |
| Databáze: | OpenAIRE |
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