Heavy and heavy-light tensor and axial-tensor mesons in the Covariant Spectator Theory
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914447564472320 |
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| author | Biernat, Elmar P. Stadler, Alfred |
| author_facet | Biernat, Elmar P. Stadler, Alfred |
| contents | We present the first calculation of tensor and axial-tensor mesons with total spin $J\geq2$ within the Covariant Spectator Theory. We employ a refined quark-antiquark interaction kernel that incorporates the momentum dependence of the strong coupling, replacing the previously used constant term of the kernel. Global least-squares fits to the masses of experimentally established heavy and heavy-light meson states yield an excellent description of the mass spectrum for $J^P=0^\pm, 1^\pm, 2^\pm$, and $3^\pm$ using only eight adjustable parameters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_04113 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Heavy and heavy-light tensor and axial-tensor mesons in the Covariant Spectator Theory Biernat, Elmar P. Stadler, Alfred Nuclear Theory High Energy Physics - Phenomenology We present the first calculation of tensor and axial-tensor mesons with total spin $J\geq2$ within the Covariant Spectator Theory. We employ a refined quark-antiquark interaction kernel that incorporates the momentum dependence of the strong coupling, replacing the previously used constant term of the kernel. Global least-squares fits to the masses of experimentally established heavy and heavy-light meson states yield an excellent description of the mass spectrum for $J^P=0^\pm, 1^\pm, 2^\pm$, and $3^\pm$ using only eight adjustable parameters. |
| title | Heavy and heavy-light tensor and axial-tensor mesons in the Covariant Spectator Theory |
| topic | Nuclear Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2604.04113 |