Physical properties of resonances as the building blocks of multichannel scattering amplitudes
We propose a simple formula for multichannel resonant scattering with parameters related to physical resonant properties. It can be used to predict residue phase from other resonant parameters and describe the shape of scattering amplitudes close to the resonance without any background contributions...
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| Veröffentlicht in: | arXiv.org 2017-02 |
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| creator | Ceci, Saša Marin Vukšić Zauner, Branimir |
| description | We propose a simple formula for multichannel resonant scattering with parameters related to physical resonant properties. It can be used to predict residue phase from other resonant parameters and describe the shape of scattering amplitudes close to the resonance without any background contributions or fitting. It works well even for overlapping resonances. Imposing unitarity to the proposed formula enabled us to explain some puzzling features of much more advanced models. |
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| issn | 2331-8422 |
| language | eng |
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| subjects | Amplitudes Parameters Physical properties Resonance scattering |
| title | Physical properties of resonances as the building blocks of multichannel scattering amplitudes |
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