System Energies for Pentaquark Family Using Thomas-Fermi Quark Model
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arXiv
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| Auteurs principaux: | , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866917135846998016 |
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| author | Baral, Suman Aryal, Bipin Giri, Mohan Denisenkoa, Artem Kaphle, Gopi Chandra Wilcox, Walter |
| author_facet | Baral, Suman Aryal, Bipin Giri, Mohan Denisenkoa, Artem Kaphle, Gopi Chandra Wilcox, Walter |
| contents | This study calculates the system energies of families of pentaquarks, $uudc\bar{c}$, starting from 5 quarks up to 70 using Thomas-Fermi statistical quark model. The model assumes spherical symmetry with the particles continuously distributed with varying densities and boundaries. The particles interact with Coulombic forces and a discontinuity in the light quark density function is energetically favored. Total energies of the system are calculated for each multiquark system and compared to determine family stability characteristics. A remarkable stability for multiquark combinations with multiples of four pentaquarks, which we term an icosaquark, is identified. The first icosaquark system is found to have lowest energy per quark, suggesting stability of a system consisting of four charm, four anticharm and twelve light quarks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_09099 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | System Energies for Pentaquark Family Using Thomas-Fermi Quark Model Baral, Suman Aryal, Bipin Giri, Mohan Denisenkoa, Artem Kaphle, Gopi Chandra Wilcox, Walter High Energy Physics - Phenomenology Nuclear Theory This study calculates the system energies of families of pentaquarks, $uudc\bar{c}$, starting from 5 quarks up to 70 using Thomas-Fermi statistical quark model. The model assumes spherical symmetry with the particles continuously distributed with varying densities and boundaries. The particles interact with Coulombic forces and a discontinuity in the light quark density function is energetically favored. Total energies of the system are calculated for each multiquark system and compared to determine family stability characteristics. A remarkable stability for multiquark combinations with multiples of four pentaquarks, which we term an icosaquark, is identified. The first icosaquark system is found to have lowest energy per quark, suggesting stability of a system consisting of four charm, four anticharm and twelve light quarks. |
| title | System Energies for Pentaquark Family Using Thomas-Fermi Quark Model |
| topic | High Energy Physics - Phenomenology Nuclear Theory |
| url | https://arxiv.org/abs/2512.09099 |