Properties of H particle-admixed compact star
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866915764935589888 |
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| author | Wu, Xuhao Wang, Liming An, Hong-Tao Ju, Min Shen, Hong |
| author_facet | Wu, Xuhao Wang, Liming An, Hong-Tao Ju, Min Shen, Hong |
| contents | We explore the potential manifestation of a hexaquark, the H particle, as a constituent within neutron stars. The H particle, characterized by a quark composition of $uuddss$, is constructed using the framework of Chromomagnetic Interaction (CMI). Specifically, we contemplate the flavor-singlet state H with $J^P=0^+$. Our computations indicate that the three-flavor hexaquark state, the H particle, possesses a lower mass of $2212.7~\rm{MeV}$ in comparison to the $d^*(2380)$, implying greater stability than the two-flavor $d^*(2380)$. The analysis involving the H particle is carried out using the relativistic mean-field (RMF) model. We investigate the influence of H particle couplings, a key factor in determining the system stability, and focus on the potential existence of H particle within neutron stars. We find that H particle could potentially endure as a stable constituent within neutron stars, and lead to a reduction of the maximum mass. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_14288 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Properties of H particle-admixed compact star Wu, Xuhao Wang, Liming An, Hong-Tao Ju, Min Shen, Hong Nuclear Theory We explore the potential manifestation of a hexaquark, the H particle, as a constituent within neutron stars. The H particle, characterized by a quark composition of $uuddss$, is constructed using the framework of Chromomagnetic Interaction (CMI). Specifically, we contemplate the flavor-singlet state H with $J^P=0^+$. Our computations indicate that the three-flavor hexaquark state, the H particle, possesses a lower mass of $2212.7~\rm{MeV}$ in comparison to the $d^*(2380)$, implying greater stability than the two-flavor $d^*(2380)$. The analysis involving the H particle is carried out using the relativistic mean-field (RMF) model. We investigate the influence of H particle couplings, a key factor in determining the system stability, and focus on the potential existence of H particle within neutron stars. We find that H particle could potentially endure as a stable constituent within neutron stars, and lead to a reduction of the maximum mass. |
| title | Properties of H particle-admixed compact star |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2402.14288 |