Geometric Constraint on Residue Phases: Resolving the N(2190) Anomaly and Diagnosing Exotic States
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arXiv
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| Autores principales: | , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Acceso en línea: | |
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| _version_ | 1866912820236386304 |
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| author | Ceci, S. Omerović, R. Osmanović, H. Uroić, M. Vukšić, M. Zauner, B. |
| author_facet | Ceci, S. Omerović, R. Osmanović, H. Uroić, M. Vukšić, M. Zauner, B. |
| contents | We derive a parameter-free geometric constraint on residue phases dictated by the pole-threshold angle. Using the N(2190) anomaly as a test case, this constraint reveals a sign ambiguity in prior data; correcting it yields a phase of $-28^\circ\pm10^\circ$, matching our prediction. This consistency validates the method as a model-independent diagnostic for distinguishing compact from molecular states, offering a rigorous tool for exotic spectroscopy. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_08451 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Geometric Constraint on Residue Phases: Resolving the N(2190) Anomaly and Diagnosing Exotic States Ceci, S. Omerović, R. Osmanović, H. Uroić, M. Vukšić, M. Zauner, B. High Energy Physics - Phenomenology We derive a parameter-free geometric constraint on residue phases dictated by the pole-threshold angle. Using the N(2190) anomaly as a test case, this constraint reveals a sign ambiguity in prior data; correcting it yields a phase of $-28^\circ\pm10^\circ$, matching our prediction. This consistency validates the method as a model-independent diagnostic for distinguishing compact from molecular states, offering a rigorous tool for exotic spectroscopy. |
| title | Geometric Constraint on Residue Phases: Resolving the N(2190) Anomaly and Diagnosing Exotic States |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2601.08451 |