Nuclear coherent $π^0$ photoproduction with charge-exchange and spin-flip rescattering
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866911973207179264 |
|---|---|
| author | Tsaran, Viacheslav Vanderhaeghen, Marc |
| author_facet | Tsaran, Viacheslav Vanderhaeghen, Marc |
| contents | In this work, we present an updated model for nuclear $π^0$ photoproduction, which incorporates pion second-order rescattering on intermediate excited nuclear states. Our approach is based on the distorted wave impulse approximation in momentum space. The many-body medium effects are incorporated in the complex effective $Δ$ self-energy, employing the results of the recently developed second-order pion-nucleus scattering potential. The experimental data for ${}^{12}$C and ${}^{40}$Ca are successfully described without the need to fit the model parameters of the photoproduction amplitude as a result of incorporating the second-order part of nuclear photoproduction potential, which involves intermediate nucleon spin-flip and charge exchange. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_08608 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Nuclear coherent $π^0$ photoproduction with charge-exchange and spin-flip rescattering Tsaran, Viacheslav Vanderhaeghen, Marc Nuclear Theory High Energy Physics - Phenomenology In this work, we present an updated model for nuclear $π^0$ photoproduction, which incorporates pion second-order rescattering on intermediate excited nuclear states. Our approach is based on the distorted wave impulse approximation in momentum space. The many-body medium effects are incorporated in the complex effective $Δ$ self-energy, employing the results of the recently developed second-order pion-nucleus scattering potential. The experimental data for ${}^{12}$C and ${}^{40}$Ca are successfully described without the need to fit the model parameters of the photoproduction amplitude as a result of incorporating the second-order part of nuclear photoproduction potential, which involves intermediate nucleon spin-flip and charge exchange. |
| title | Nuclear coherent $π^0$ photoproduction with charge-exchange and spin-flip rescattering |
| topic | Nuclear Theory High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2403.08608 |