Slope parameters determined from CREX and PREX2 (published in Results in Physics)
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866912454671335424 |
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| author | Tagami, Shingo Wakasa, Tomotsugu Yahiro, Masanobu |
| author_facet | Tagami, Shingo Wakasa, Tomotsugu Yahiro, Masanobu |
| contents | [Background] Very lately, the CREX group presents a skin value $ΔR_{\rm skin}^{48}({\rm CREX}) =0.121 \pm 0.026\ {\rm (exp)} \pm 0.024\ {\rm (model)}=0.071\sim 0.171$~fm. Meanwhile, the PREX group reported a skin value $ΔR_{\rm skin}^{208}({\rm PREX2}) = 0.283\pm 0.071=0.212 \sim 0.354$~fm. In our previous paper, we determined both the $L$--$ΔR_{\rm skin}^{48}$ relation and the $L$--$ΔR_{\rm skin}^{208}$ one, using 206 EoSs, where $L$ is a slope parameter. [Purpose] We determine $L$ from $ΔR_{\rm skin}^{48}({\rm CREX})$ and $ΔR_{\rm skin}^{208}({\rm PREX2}) $, using 207 EoSs. [Results] The $ΔR_{\rm skin}^{48}({\rm CREX})$ yields $L({\rm CREX})=0 \sim 51$~MeV and the $ΔR_{\rm skin}^{208}({\rm PREX2}) $ does $L({\rm PREX2})=76 \sim 165$~MeV. [Conclusion] There is no overlap between $L({\rm CREX})$ and $L({\rm PREX2})$. This is a big problem to be solved. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_03313 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Slope parameters determined from CREX and PREX2 (published in Results in Physics) Tagami, Shingo Wakasa, Tomotsugu Yahiro, Masanobu Nuclear Theory [Background] Very lately, the CREX group presents a skin value $ΔR_{\rm skin}^{48}({\rm CREX}) =0.121 \pm 0.026\ {\rm (exp)} \pm 0.024\ {\rm (model)}=0.071\sim 0.171$~fm. Meanwhile, the PREX group reported a skin value $ΔR_{\rm skin}^{208}({\rm PREX2}) = 0.283\pm 0.071=0.212 \sim 0.354$~fm. In our previous paper, we determined both the $L$--$ΔR_{\rm skin}^{48}$ relation and the $L$--$ΔR_{\rm skin}^{208}$ one, using 206 EoSs, where $L$ is a slope parameter. [Purpose] We determine $L$ from $ΔR_{\rm skin}^{48}({\rm CREX})$ and $ΔR_{\rm skin}^{208}({\rm PREX2}) $, using 207 EoSs. [Results] The $ΔR_{\rm skin}^{48}({\rm CREX})$ yields $L({\rm CREX})=0 \sim 51$~MeV and the $ΔR_{\rm skin}^{208}({\rm PREX2}) $ does $L({\rm PREX2})=76 \sim 165$~MeV. [Conclusion] There is no overlap between $L({\rm CREX})$ and $L({\rm PREX2})$. This is a big problem to be solved. |
| title | Slope parameters determined from CREX and PREX2 (published in Results in Physics) |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2210.03313 |