Charge symmetry breaking in hypernuclei within RMF model
We study the charge symmetry breaking (CSB) effect in the binding energy of mirror hypernuclei in the mass region A=7∼48 in relativistic mean field (RMF) models introducing NN and ΛN interactions. The phenomenological ΛN CSB interaction is introduced and the strength parameter is fitted to reproduce...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325002217 |
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| author | Ting-Ting Sun Yusuke Tanimura Hiroyuki Sagawa Emiko Hiyama |
| author_facet | Ting-Ting Sun Yusuke Tanimura Hiroyuki Sagawa Emiko Hiyama |
| author_sort | Ting-Ting Sun |
| collection | DOAJ |
| description | We study the charge symmetry breaking (CSB) effect in the binding energy of mirror hypernuclei in the mass region A=7∼48 in relativistic mean field (RMF) models introducing NN and ΛN interactions. The phenomenological ΛN CSB interaction is introduced and the strength parameter is fitted to reproduce the experimental binding energy difference between the mirror hypernuclei Λ12B and Λ12C. This model is applied to calculate the CSB energy anomaly in mirror hypernuclei with the mass A=7∼48. The model is further applied to predict the binding energy difference of mirror hypernuclei of A=40 with the isospin T=1/2, 3/2 and 5/2 nuclei together with various hyper Ca isotopes and their mirror hypernuclei. Finally the binding energy systematics of A=48 hypernuclei are predicted with/without the CSB effect by the PK1 and TM2 energy density functionals (EDFs). |
| format | Article |
| id | doaj-art-ece130fa1bc04acd8dcd1e116e4e5800 |
| institution | DOAJ |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-ece130fa1bc04acd8dcd1e116e4e58002025-08-20T02:57:16ZengElsevierPhysics Letters B0370-26932025-06-0186513946010.1016/j.physletb.2025.139460Charge symmetry breaking in hypernuclei within RMF modelTing-Ting Sun0Yusuke Tanimura1Hiroyuki Sagawa2Emiko Hiyama3School of Physics, Zhengzhou University, Zhengzhou 450001, China; RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, JapanDepartment of Physics and Origin of Matter and Evolution of Galaxy (OMEG) Institute, Soongsil University, Seoul 06978, KoreaRIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan; Center for Mathematics and Physics, the University of Aizu, Aizu-Wakamatsu, Fukushima 965-8580, Japan; Corresponding authors at: RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan.Department of Physics, Graduate School of Science, Tohoku University, Sendai 980-8578, Japan; RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan; Corresponding authors at: RIKEN Nishina Center for Accelerator-Based Science, Wako, Saitama 351-0198, Japan.We study the charge symmetry breaking (CSB) effect in the binding energy of mirror hypernuclei in the mass region A=7∼48 in relativistic mean field (RMF) models introducing NN and ΛN interactions. The phenomenological ΛN CSB interaction is introduced and the strength parameter is fitted to reproduce the experimental binding energy difference between the mirror hypernuclei Λ12B and Λ12C. This model is applied to calculate the CSB energy anomaly in mirror hypernuclei with the mass A=7∼48. The model is further applied to predict the binding energy difference of mirror hypernuclei of A=40 with the isospin T=1/2, 3/2 and 5/2 nuclei together with various hyper Ca isotopes and their mirror hypernuclei. Finally the binding energy systematics of A=48 hypernuclei are predicted with/without the CSB effect by the PK1 and TM2 energy density functionals (EDFs).http://www.sciencedirect.com/science/article/pii/S0370269325002217Charge symmetry breakingSingle-Λ hypernucleiRMF model |
| spellingShingle | Ting-Ting Sun Yusuke Tanimura Hiroyuki Sagawa Emiko Hiyama Charge symmetry breaking in hypernuclei within RMF model Physics Letters B Charge symmetry breaking Single-Λ hypernuclei RMF model |
| title | Charge symmetry breaking in hypernuclei within RMF model |
| title_full | Charge symmetry breaking in hypernuclei within RMF model |
| title_fullStr | Charge symmetry breaking in hypernuclei within RMF model |
| title_full_unstemmed | Charge symmetry breaking in hypernuclei within RMF model |
| title_short | Charge symmetry breaking in hypernuclei within RMF model |
| title_sort | charge symmetry breaking in hypernuclei within rmf model |
| topic | Charge symmetry breaking Single-Λ hypernuclei RMF model |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325002217 |
| work_keys_str_mv | AT tingtingsun chargesymmetrybreakinginhypernucleiwithinrmfmodel AT yusuketanimura chargesymmetrybreakinginhypernucleiwithinrmfmodel AT hiroyukisagawa chargesymmetrybreakinginhypernucleiwithinrmfmodel AT emikohiyama chargesymmetrybreakinginhypernucleiwithinrmfmodel |