Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach
We studied the nuclear shape evolutions in fission process of 240Pu by the time-dependent Hartree-Fock approach with various Skyrme forces. Calculations are performed for the later phase of the fission with large initial deformations toward the scission. We show that calculations with Skyrme forces...
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| Format: | Article |
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Frontiers Media S.A.
2020-09-01
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| Series: | Frontiers in Physics |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fphy.2020.00351/full |
| _version_ | 1818966010983612416 |
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| author | Marko Pancic Marko Pancic Yu Qiang Junchen Pei Paul Stevenson |
| author_facet | Marko Pancic Marko Pancic Yu Qiang Junchen Pei Paul Stevenson |
| author_sort | Marko Pancic |
| collection | DOAJ |
| description | We studied the nuclear shape evolutions in fission process of 240Pu by the time-dependent Hartree-Fock approach with various Skyrme forces. Calculations are performed for the later phase of the fission with large initial deformations toward the scission. We show that calculations with Skyrme forces with large surface energies and large symmetry energies can have extremely long fission evolution time. The symmetry energy plays a role in the evolution of neutron-rich necks. In addition, we also demonstrated the shape oscillations of fission fragments after the fission. We see that particularly the heavy near-spherical fragments have remarkable octupole oscillations. |
| first_indexed | 2024-12-20T13:26:07Z |
| format | Article |
| id | doaj.art-55528c1c1d5047288725f1e4f818486f |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-12-20T13:26:07Z |
| publishDate | 2020-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-55528c1c1d5047288725f1e4f818486f2022-12-21T19:39:16ZengFrontiers Media S.A.Frontiers in Physics2296-424X2020-09-01810.3389/fphy.2020.00351566257Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock ApproachMarko Pancic0Marko Pancic1Yu Qiang2Junchen Pei3Paul Stevenson4State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, ChinaDepartment of Physics, University of Surrey, Guildford, United KingdomState Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, ChinaState Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing, ChinaDepartment of Physics, University of Surrey, Guildford, United KingdomWe studied the nuclear shape evolutions in fission process of 240Pu by the time-dependent Hartree-Fock approach with various Skyrme forces. Calculations are performed for the later phase of the fission with large initial deformations toward the scission. We show that calculations with Skyrme forces with large surface energies and large symmetry energies can have extremely long fission evolution time. The symmetry energy plays a role in the evolution of neutron-rich necks. In addition, we also demonstrated the shape oscillations of fission fragments after the fission. We see that particularly the heavy near-spherical fragments have remarkable octupole oscillations.https://www.frontiersin.org/article/10.3389/fphy.2020.00351/fullnuclear fissionTDHF methodSkyrme forcefission fragmentssurface energysymmetry energy |
| spellingShingle | Marko Pancic Marko Pancic Yu Qiang Junchen Pei Paul Stevenson Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach Frontiers in Physics nuclear fission TDHF method Skyrme force fission fragments surface energy symmetry energy |
| title | Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach |
| title_full | Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach |
| title_fullStr | Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach |
| title_full_unstemmed | Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach |
| title_short | Shape Evolutions in Fission Dynamics Within Time-Dependent Hartree-Fock Approach |
| title_sort | shape evolutions in fission dynamics within time dependent hartree fock approach |
| topic | nuclear fission TDHF method Skyrme force fission fragments surface energy symmetry energy |
| url | https://www.frontiersin.org/article/10.3389/fphy.2020.00351/full |
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