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Godbey, K.; Guo, Lu1,2; Umar, A. S.
Influence of the tensor interaction on heavy-ion fusion cross sections
Source PublicationPHYSICAL REVIEW C
Language英语
KeywordSUBBARRIER FUSION MEAN-FIELD DYNAMICS NUCLEI ENERGY FORCE
AbstractBackground: While the tensor interaction has been shown to significantly affect the nuclear structure of exotic nuclei, its influence on nuclear reactions has only recently been investigated. The primary reason for this neglect is the fact that most studies of nuclear dynamics do not include the tensor force at all in their models. Indeed, only a few Skyrme parametrizations consider the tensor interaction in parameter determination. With modern research facilities extending our ability to probe exotic nuclei, a correct description of nuclear dynamics and heavy-ion fusion is vital to both supporting and leading experimental efforts. Purpose: To investigate the effect of the tensor interaction on fusion cross sections for a variety of nuclear reactions spanning light and heavy nuclei. Method: Fusion cross sections are calculated using ion-ion potentials generated by the fully microscopic density-constrained time-dependent Hartree-Fock method with the complete Skyrme tensor interaction. Results: For light nuclei, the tensor force only slightly changes the sub-barrier fusion cross sections at very low energies. Heavier nuclei, however, begin to exhibit a substantial hindrance effect in the sub-barrier region. This effect is strongest in spin-unsaturated systems, though can manifest in other configurations as well. Static, ground state deformation effects of the tensor force can also affect cross sections by shifting the fusion barrier. Conclusions: The tensor interaction has a measurable effect on the fusion cross sections of nuclei spanning the nuclear chart. The effect comes from both static effects present in the ground state and dynamic processes arising from the time evolution of the system. This motivates the development of a modern Skyrme parameter set that includes all time-odd and tensor terms and that studies moving forward should include the tensor force to ensure a more robust and complete description of nuclei.
2019
ISSN2469-9985
Volume100Issue:5Pages:54612
Cooperation Status国际
Subject AreaPhysics
MOST Discipline CataloguePhysics, Nuclear
DOI10.1103/PhysRevC.100.054612
Indexed BySCIE
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Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/27008
CollectionSCI期刊论文
Affiliation1.[Godbey, K.; Umar, A. S.] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
2.Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Godbey, K.,Guo, Lu,Umar, A. S.. Influence of the tensor interaction on heavy-ion fusion cross sections[J]. PHYSICAL REVIEW C,2019,100(5):54612.
APA Godbey, K.,Guo, Lu,&Umar, A. S..(2019).Influence of the tensor interaction on heavy-ion fusion cross sections.PHYSICAL REVIEW C,100(5),54612.
MLA Godbey, K.,et al."Influence of the tensor interaction on heavy-ion fusion cross sections".PHYSICAL REVIEW C 100.5(2019):54612.
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