Regge phenomenology of the N∗ and Δ∗ poles
| Autor: | Silva-Castro, J. A., Fernández-Ramírez, C., Albaladejo, M., Danilkin, I. V., Jackura, A., Mathieu, V., Nys, J., Pilloni, A., Szczepaniak, A. P., Fox, G. |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
DYNAMICS
high energy Physics and Astronomy (miscellaneous) High Energy Physics::Lattice High Energy Physics::Phenomenology ANALYTIC PROPERTIES PARTIAL-WAVES Computer Science::Digital Libraries MESONS Physics and Astronomy RELATIVISTIC QUARK-MODEL ALGEBRAIC MODELS High Energy Physics::Experiment pion photoproduction HADRON STRUCTURE TRAJECTORIES AMPLITUDES |
| Zdroj: | PHYSICAL REVIEW D Physical Review |
| ISSN: | 2470-0010 2470-0029 |
| Popis: | We use Regge phenomenology to study the structure of the poles of the N* and Δ* spectrum. We employ the available pole extractions from partial wave analysis of meson scattering and photoproduction data. We assess the importance of the imaginary part of the poles (widths) to obtain a consistent determination of the parameters of the Regge trajectory. We compare the several pole extractions and show how Regge phenomenology can be used to gain insight into the internal structure of baryons. We find that the majority of the states in the parent Regge trajectories are compatible with a mostly compact three-quark state picture. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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