The Roper Resonance: Still Controversial 60 Years Later
Fuente:
arXiv
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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911451875115008 |
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| author | Thomas, Anthony W |
| author_facet | Thomas, Anthony W |
| contents | Few baryon resonances have generated as much discussion, even controversy, as the first positive parity excited state with nucleon quantum numbers. We re-examine the issue using insight gained from lattice QCD, complemented by Hamiltonian effective field theory. In doing so, we also examine the distinction between a state that can be naturally described as a quark model state and one that is dynamically generated. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_15320 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | The Roper Resonance: Still Controversial 60 Years Later Thomas, Anthony W High Energy Physics - Phenomenology Few baryon resonances have generated as much discussion, even controversy, as the first positive parity excited state with nucleon quantum numbers. We re-examine the issue using insight gained from lattice QCD, complemented by Hamiltonian effective field theory. In doing so, we also examine the distinction between a state that can be naturally described as a quark model state and one that is dynamically generated. |
| title | The Roper Resonance: Still Controversial 60 Years Later |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2602.15320 |