Molecular resonances in 28Si + 28Si
High-spin resonances observed in 28Si+ 28Si collisions are studied with a dinuclear molecular model. At high spins, a stable dinuclear configuration of the oblate-oblate system (28Si + 28Si) is found to be an equator-equator (E-E) touching one. Normal modes have been investigated around the equilibr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2014-03-01
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| Series: | EPJ Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/epjconf/20146603089 |
| _version_ | 1818765689779912704 |
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| author | Uegaki E. Abe Y. |
| author_facet | Uegaki E. Abe Y. |
| author_sort | Uegaki E. |
| collection | DOAJ |
| description | High-spin resonances observed in 28Si+ 28Si collisions are studied with a dinuclear molecular model. At high spins, a stable dinuclear configuration of the oblate-oblate system (28Si + 28Si) is found to be an equator-equator (E-E) touching one. Normal modes have been investigated around the equilibrium, which are expected to be an origin of a large number of the resonances observed. Analyses of physical quantities are made and compared with the recent experimental data measured at Strasbourg. Since the E-E configuration is slightly triaxial, rotations of the total system induce mixing of K quantum numbers, called wobbling motion, which clearly explains the particle-γ angular correlations observed as well as the disalignments observed in the angular distributions, in a simple and natural way. Furthermore, predictions are given for the angular correlations of the wobbling excited states. The importance of the angular correlation measurements is stressed, which provide identification of the dinuclear configurations by spin orientations of the constituent nuclei 28Si. |
| first_indexed | 2024-12-18T08:22:05Z |
| format | Article |
| id | doaj.art-68e3811980e34df9bece6e2008fc2729 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-18T08:22:05Z |
| publishDate | 2014-03-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-68e3811980e34df9bece6e2008fc27292022-12-21T21:14:42ZengEDP SciencesEPJ Web of Conferences2100-014X2014-03-01660308910.1051/epjconf/20146603089epjconf_inpc2013_03089Molecular resonances in 28Si + 28SiUegaki E.0Abe Y.1Graduate School of Engineering and Resource Science, Akita UniversityResearch Center for Nuclear Physics, Osaka UniversityHigh-spin resonances observed in 28Si+ 28Si collisions are studied with a dinuclear molecular model. At high spins, a stable dinuclear configuration of the oblate-oblate system (28Si + 28Si) is found to be an equator-equator (E-E) touching one. Normal modes have been investigated around the equilibrium, which are expected to be an origin of a large number of the resonances observed. Analyses of physical quantities are made and compared with the recent experimental data measured at Strasbourg. Since the E-E configuration is slightly triaxial, rotations of the total system induce mixing of K quantum numbers, called wobbling motion, which clearly explains the particle-γ angular correlations observed as well as the disalignments observed in the angular distributions, in a simple and natural way. Furthermore, predictions are given for the angular correlations of the wobbling excited states. The importance of the angular correlation measurements is stressed, which provide identification of the dinuclear configurations by spin orientations of the constituent nuclei 28Si.http://dx.doi.org/10.1051/epjconf/20146603089 |
| spellingShingle | Uegaki E. Abe Y. Molecular resonances in 28Si + 28Si EPJ Web of Conferences |
| title | Molecular resonances in 28Si + 28Si |
| title_full | Molecular resonances in 28Si + 28Si |
| title_fullStr | Molecular resonances in 28Si + 28Si |
| title_full_unstemmed | Molecular resonances in 28Si + 28Si |
| title_short | Molecular resonances in 28Si + 28Si |
| title_sort | molecular resonances in 28si 28si |
| url | http://dx.doi.org/10.1051/epjconf/20146603089 |
| work_keys_str_mv | AT uegakie molecularresonancesin28si28si AT abey molecularresonancesin28si28si |