Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model
Novel collective modes characterized by a B4/2 ratio (≡B(E2;41+→21+)/B(E2;21+→01+)) less than 1.0 that were observed recently have been identified within the proton-neutron interacting boson model (IBM-2) using the consistent-Q Hamiltonian. These modes are shown to give rise to triaxial spectral fea...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325002485 |
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| author | Wei Teng Yu Zhang Sheng-Nan Wang Feng Pan Chong Qi J.P. Draayer |
| author_facet | Wei Teng Yu Zhang Sheng-Nan Wang Feng Pan Chong Qi J.P. Draayer |
| author_sort | Wei Teng |
| collection | DOAJ |
| description | Novel collective modes characterized by a B4/2 ratio (≡B(E2;41+→21+)/B(E2;21+→01+)) less than 1.0 that were observed recently have been identified within the proton-neutron interacting boson model (IBM-2) using the consistent-Q Hamiltonian. These modes are shown to give rise to triaxial spectral features, including significant band mixing. The results provide a compelling explanation for the deeply suppressed B4/2 ratio observed in 166W, 168,170Os, and 172Pt, offering new insights into the B(E2) anomaly phenomenon in neutron-deficient nuclei. |
| format | Article |
| id | doaj-art-d987bd458b544cad9d8cb82f68cce867 |
| institution | DOAJ |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-d987bd458b544cad9d8cb82f68cce8672025-08-20T02:57:04ZengElsevierPhysics Letters B0370-26932025-06-0186513948710.1016/j.physletb.2025.139487Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson modelWei Teng0Yu Zhang1Sheng-Nan Wang2Feng Pan3Chong Qi4J.P. Draayer5Department of Physics, Liaoning Normal University, Dalian 116029, PR ChinaDepartment of Physics, Liaoning Normal University, Dalian 116029, PR China; Corresponding author.Department of Physics, Liaoning Normal University, Dalian 116029, PR ChinaDepartment of Physics, Liaoning Normal University, Dalian 116029, PR China; Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001, USADepartment of Physics, KTH Royal Institute of Technology, Stockholm 10691, Sweden; Academy of Romanian Scientists, llfov Street, no.3, 050044, Bucharest RomaniaDepartment of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70803-4001, USANovel collective modes characterized by a B4/2 ratio (≡B(E2;41+→21+)/B(E2;21+→01+)) less than 1.0 that were observed recently have been identified within the proton-neutron interacting boson model (IBM-2) using the consistent-Q Hamiltonian. These modes are shown to give rise to triaxial spectral features, including significant band mixing. The results provide a compelling explanation for the deeply suppressed B4/2 ratio observed in 166W, 168,170Os, and 172Pt, offering new insights into the B(E2) anomaly phenomenon in neutron-deficient nuclei.http://www.sciencedirect.com/science/article/pii/S0370269325002485 |
| spellingShingle | Wei Teng Yu Zhang Sheng-Nan Wang Feng Pan Chong Qi J.P. Draayer Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model Physics Letters B |
| title | Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model |
| title_full | Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model |
| title_fullStr | Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model |
| title_full_unstemmed | Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model |
| title_short | Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model |
| title_sort | anomalous collective modes in atomic nuclei within the proton neutron interacting boson model |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325002485 |
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