Experimental study of $α$-induced reactions on $^{113}$In for astrophysical $p$-process
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866910295281106944 |
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| author | Basak, Dipali Bar, Tanmoy Roy, Abhijit Sahoo, Lalit Kumar Saha, Sukhendu Datta, Jagannath Dasgupta, Sandipan Basu, Chinmay |
| author_facet | Basak, Dipali Bar, Tanmoy Roy, Abhijit Sahoo, Lalit Kumar Saha, Sukhendu Datta, Jagannath Dasgupta, Sandipan Basu, Chinmay |
| contents | Neutron deficient nuclei from $^{74}$Se$-^{196}$Hg are thought to be produced by $γ$-induced reactions ($γ$,n), ($γ$,p) and ($γ,α$) processes. The relatively high abundance of $^{113}$In odd A $p$-nuclei has inspired to study its production processes. As reaction with $γ$-beam is difficult to perform in the laboratory, $γ$-induced reaction rate is calculated from the inverse reaction data employing reciprocity theorem. Stacked foil activation method was used to measure the $^{113}$In($α,γ$) and $^{113}$In($α$, n) reactions cross-section near the astrophysical energies. Theoretical statistical model calculations were performed with different nuclear input parameters and compared with the experimental results. An appropriate $α$-optical potential has been identified from the ($α,γ$) and ($α$, n) fitting, which provides the major source of uncertainty in the statistical model calculations. The other nuclear input parameters like level density, and $γ$-ray strength function were also constrained for theoretical calculations. $^{113}$In($α,γ$)$^{117}$Sb and $^{117}$Sb($α,γ$)$^{113}$In reaction rates were calculated using best-fitted input parameters. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_06478 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Experimental study of $α$-induced reactions on $^{113}$In for astrophysical $p$-process Basak, Dipali Bar, Tanmoy Roy, Abhijit Sahoo, Lalit Kumar Saha, Sukhendu Datta, Jagannath Dasgupta, Sandipan Basu, Chinmay Nuclear Experiment Solar and Stellar Astrophysics Neutron deficient nuclei from $^{74}$Se$-^{196}$Hg are thought to be produced by $γ$-induced reactions ($γ$,n), ($γ$,p) and ($γ,α$) processes. The relatively high abundance of $^{113}$In odd A $p$-nuclei has inspired to study its production processes. As reaction with $γ$-beam is difficult to perform in the laboratory, $γ$-induced reaction rate is calculated from the inverse reaction data employing reciprocity theorem. Stacked foil activation method was used to measure the $^{113}$In($α,γ$) and $^{113}$In($α$, n) reactions cross-section near the astrophysical energies. Theoretical statistical model calculations were performed with different nuclear input parameters and compared with the experimental results. An appropriate $α$-optical potential has been identified from the ($α,γ$) and ($α$, n) fitting, which provides the major source of uncertainty in the statistical model calculations. The other nuclear input parameters like level density, and $γ$-ray strength function were also constrained for theoretical calculations. $^{113}$In($α,γ$)$^{117}$Sb and $^{117}$Sb($α,γ$)$^{113}$In reaction rates were calculated using best-fitted input parameters. |
| title | Experimental study of $α$-induced reactions on $^{113}$In for astrophysical $p$-process |
| topic | Nuclear Experiment Solar and Stellar Astrophysics |
| url | https://arxiv.org/abs/2401.06478 |