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Scientific paper - Original scientific paper
Time-dependent generator coordinate method study of fission: Dissipation effects
Physical Review C, 105 (2022), 5; 054604. https://doi.org/10.1103/PhysRevC.105.054604
Zhao, Jie; Nikšić, Tamara; Vretenar, Dario

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Zhao, J., Nikšić, T. & Vretenar, D. (2022). Time-dependent generator coordinate method study of fission: Dissipation effects. Physical Review C, 105. (5). doi: 10.1103/PhysRevC.105.054604

Zhao, Jie, et al. "Time-dependent generator coordinate method study of fission: Dissipation effects." Physical Review C, vol. 105, no. 5, 2022. https://doi.org/10.1103/PhysRevC.105.054604

Zhao, Jie, Tamara Nikšić and Dario Vretenar. "Time-dependent generator coordinate method study of fission: Dissipation effects." Physical Review C 105, no. 5 (2022). https://doi.org/10.1103/PhysRevC.105.054604

Zhao, J., Nikšić, T. and Vretenar, D. (2022) 'Time-dependent generator coordinate method study of fission: Dissipation effects', Physical Review C, 105(5). doi: 10.1103/PhysRevC.105.054604

Zhao J, Nikšić T, Vretenar D. Time-dependent generator coordinate method study of fission: Dissipation effects. Physical Review C [Internet]. 2022 [cited 2024 December 21];105(5). doi: 10.1103/PhysRevC.105.054604

J. Zhao, T. Nikšić and D. Vretenar, "Time-dependent generator coordinate method study of fission: Dissipation effects", Physical Review C, vol. 105, no. 5, 2022. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:697857. [Accessed: 21 December 2024]

Metadata
Title (english)Time-dependent generator coordinate method study of fission: Dissipation effects
AuthorJie Zhao
AuthorTamara Nikšić
AuthorDario Vretenar
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Starting from a quantum theory of dissipation for nuclear collective motion introduced by Kerman and Koonin [Phys. Scr. 10, 118 (1974)], the time- dependent generator coordinate method (TDGCM) is extended to allow for dissipation effects in the description of induced fission dynamics. The extension is based on a generalization of the GCM generating functions that includes excited states, and the resulting equation of motion in the collective coordinates and excitation energy. With the assumption of a narrow Hamiltonian kernel, an expansion in a power series in collective momenta leads to a Schrödinger-like equation that explicitly includes a dissipation term, proportional to the momentum of the statistical wave function. An illustrative calculation is performed for induced fission of 228Th. The three- dimensional model space includes the axially symmetric quadrupole and octupole shape variables, and the nuclear temperature. When compared with data for photoinduced fission of 228Th, the calculated fission yields demonstrate the important role of the additional term in the Hamiltonian that explicitly takes into account the dissipation of energy of collective motion into intrinsic degrees of freedom.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical Review C
Numberingvol. 105, no. 5, 054604
p-ISSN2469-9985
e-ISSN2469-9993
DOIhttps://doi.org/10.1103/PhysRevC.105.054604
URN:NBNurn:nbn:hr:217:697857
Publication2022
ProjectNumber: IP-2018-01-5987
Title (croatian): Kvantificiranje neodređenosti u formalizmu nuklearnih energijskih funkcionala gustoće
Title (english): Uncertainty Quantification within the nuclear energy density functional framework
Acronym: NucEDF
Leader: Tamara Nikšić
Jurisdiction: Croatia
Funding stream: IP
ProjectNumber: KK.01.1.1.01.0004
Title (english): QuantiXLie Center of Excellence
Acronym: QuantiXLie
Leader: Hrvoje Buljan, Pavle Pandžić
Jurisdiction: eu
Funding stream: European Regional Development Fund - the Competitiveness and Cohesion Operational Programme
Document URLhttps://link.aps.org/doi/10.1103/PhysRevC.105.054604
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public note© 2022 American Physical Society. Received 28 February 2022; Accepted 2 May 2022; Published 13 May 2022.
Created on2023-09-07 19:02:09