Microscopic bell-shape nonlocality: the case of proton scattering off $^{40}$Ca at 200 MeV
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arXiv
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| Format: | Preprint |
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2024
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| _version_ | 1866911782744883200 |
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| author | Blanchon, G. Arellano, H. F. |
| author_facet | Blanchon, G. Arellano, H. F. |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2402_15009 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Microscopic bell-shape nonlocality: the case of proton scattering off $^{40}$Ca at 200 MeV Blanchon, G. Arellano, H. F. Nuclear Theory 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. |
| title | Microscopic bell-shape nonlocality: the case of proton scattering off $^{40}$Ca at 200 MeV |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2402.15009 |