A collective coupled-channel model and mirror state energy displacements
© 2015, SIF, Springer-Verlag Berlin Heidelberg. The spectra of nucleon-nucleus mirror systems allow examination of charge symmetry breaking in nucleon-nucleus interactions. To date, such examination has been performed with studies using microscopic models of structure. Herein we seek characterisatio...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
Springer New York LLC
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/23306 |
| _version_ | 1848751113828827136 |
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| author | Fraser, Paul Amos, K. Canton, L. Karataglidis, S. van der Knijff, D. Svenne, J. |
| author_facet | Fraser, Paul Amos, K. Canton, L. Karataglidis, S. van der Knijff, D. Svenne, J. |
| author_sort | Fraser, Paul |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015, SIF, Springer-Verlag Berlin Heidelberg. The spectra of nucleon-nucleus mirror systems allow examination of charge symmetry breaking in nucleon-nucleus interactions. To date, such examination has been performed with studies using microscopic models of structure. Herein we seek characterisation with a coupled-channel model in which the nucleon-nucleus interactions are described using a collective model prescription with the Pauli principle taken into account. The neutron-nucleus Hamiltonian is chosen to give the best match to the compound system spectrum, with emphasis on finding the correct ground state energy relative to the neutron-nucleus threshold. The Coulomb interactions for the proton-nucleus partner of a mirror pair are determined using charge distributions that match the root-mean-square charge radii of the nuclei in question. With the Coulomb interaction so defined modifying the neutron-nucleus Hamiltonian, we then predict a spectrum for the relevant proton-nucleus compound. Discrepancies in that resulting spectrum with measured values we tentatively ascribe to charge-symmetry breaking effects. We consider spectra obtained in this way for the mirror pairs <sup>13</sup>C and <sup>13</sup>N, <sup>15</sup>C and <sup>15</sup>F, and <sup>15</sup>O and <sup>15</sup>N, all to ~ 10 MeV excitation. |
| first_indexed | 2025-11-14T07:47:34Z |
| format | Journal Article |
| id | curtin-20.500.11937-23306 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:47:34Z |
| publishDate | 2015 |
| publisher | Springer New York LLC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-233062017-09-13T13:58:22Z A collective coupled-channel model and mirror state energy displacements Fraser, Paul Amos, K. Canton, L. Karataglidis, S. van der Knijff, D. Svenne, J. © 2015, SIF, Springer-Verlag Berlin Heidelberg. The spectra of nucleon-nucleus mirror systems allow examination of charge symmetry breaking in nucleon-nucleus interactions. To date, such examination has been performed with studies using microscopic models of structure. Herein we seek characterisation with a coupled-channel model in which the nucleon-nucleus interactions are described using a collective model prescription with the Pauli principle taken into account. The neutron-nucleus Hamiltonian is chosen to give the best match to the compound system spectrum, with emphasis on finding the correct ground state energy relative to the neutron-nucleus threshold. The Coulomb interactions for the proton-nucleus partner of a mirror pair are determined using charge distributions that match the root-mean-square charge radii of the nuclei in question. With the Coulomb interaction so defined modifying the neutron-nucleus Hamiltonian, we then predict a spectrum for the relevant proton-nucleus compound. Discrepancies in that resulting spectrum with measured values we tentatively ascribe to charge-symmetry breaking effects. We consider spectra obtained in this way for the mirror pairs <sup>13</sup>C and <sup>13</sup>N, <sup>15</sup>C and <sup>15</sup>F, and <sup>15</sup>O and <sup>15</sup>N, all to ~ 10 MeV excitation. 2015 Journal Article http://hdl.handle.net/20.500.11937/23306 10.1140/epja/i2015-15110-4 Springer New York LLC restricted |
| spellingShingle | Fraser, Paul Amos, K. Canton, L. Karataglidis, S. van der Knijff, D. Svenne, J. A collective coupled-channel model and mirror state energy displacements |
| title | A collective coupled-channel model and mirror state energy displacements |
| title_full | A collective coupled-channel model and mirror state energy displacements |
| title_fullStr | A collective coupled-channel model and mirror state energy displacements |
| title_full_unstemmed | A collective coupled-channel model and mirror state energy displacements |
| title_short | A collective coupled-channel model and mirror state energy displacements |
| title_sort | collective coupled-channel model and mirror state energy displacements |
| url | http://hdl.handle.net/20.500.11937/23306 |