Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2026
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2601.20816 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866910119093075968 |
|---|---|
| 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 show that the complex-plane structure of light hadron resonances is governed by a unified geometric framework where the threshold position plays a decisive role. By applying this framework to $ππ$, $πK$, and $πN$ phase shifts, we show that the residue phase $θ$ is primarily determined by the geometric phase $δ_0$ (the angle between pole and real axis seen from the threshold). While vector resonances exhibit excellent alignment with this geometric baseline, scalar resonances show systematic deviations of $10^\circ$--$15^\circ$, which we identify as the dynamical imprint of Adler zeros. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_20816 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Elastic phase shift analysis reveals the geometric origin of the residue phase Ceci, S. Omerović, R. Osmanović, H. Uroić, M. Vukšić, M. Zauner, B. High Energy Physics - Phenomenology We show that the complex-plane structure of light hadron resonances is governed by a unified geometric framework where the threshold position plays a decisive role. By applying this framework to $ππ$, $πK$, and $πN$ phase shifts, we show that the residue phase $θ$ is primarily determined by the geometric phase $δ_0$ (the angle between pole and real axis seen from the threshold). While vector resonances exhibit excellent alignment with this geometric baseline, scalar resonances show systematic deviations of $10^\circ$--$15^\circ$, which we identify as the dynamical imprint of Adler zeros. |
| title | Elastic phase shift analysis reveals the geometric origin of the residue phase |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2601.20816 |