Salvato in:
| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2402.15009 |
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Sommario:
- This work is part of an ongoing effort to build microscopically-driven nonlocal optical potentials easily tracktable in scattering codes. Based on the separable `$JvH$' structure proposed recently \cite{arellano_22}, where the potential can be cast as the product of a radial and nonlocality form factors, we investigate its angular dependence in momentum space. We find that scattering observables have a weak angular dependence between the momentum transfer {$\bm q=\bm k-\bm k'$}, and {$\bm K=(\bm k+\bm k')/2$}. The study is focussed on proton elastic scattering off $^{40}$Ca at 200 MeV, where the $JvH$ structure is found to be inadequate. We conclude that any improvement of the $JvH$ structure of the potential can be made to the lowest order in multipole expansions in $Kq-$representation of the potential.