α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier
Recent high-precision measurements α-particle elastic scattering and (α,x) reaction cross sections has motivated the extension of a previous semi-microscopic analysis for the mass-region 50<A<120 and energies from 13 to 50 MeV to heavy nuclei up to 209Bi. The regional optical model potenti...
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Format: | Article |
Language: | English |
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EDP Sciences
2010-03-01
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Series: | EPJ Web of Conferences |
Online Access: | http://dx.doi.org/10.1051/epjconf/20100202003 |
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author | Avrigeanu M. Avrigeanu V. |
author_facet | Avrigeanu M. Avrigeanu V. |
author_sort | Avrigeanu M. |
collection | DOAJ |
description | Recent high-precision measurements α-particle elastic scattering and (α,x) reaction cross sections has motivated the extension of a previous semi-microscopic analysis for the mass-region 50<A<120 and energies from 13 to 50 MeV to heavy nuclei up to 209Bi. The regional optical model potential for low-energy α-particles which has thus been obtained entirely on the basis of elastic-scattering data analysis, for the nuclei within the above-mentioned mass and energy ranges, is involved within the (α,γ), (α,n) and (α,p) reaction cross sections analysis at incident energies below the Coulomb barrier. The statistical-model parameters used for the cross section calculations were established by analyzing various independent experimental data for the involved nuclei, making possible the focus on the uncertainties of α-particle OMP. An optical potential which describe equally well both the low energy elastic-scattering and induced-reaction data of α-particles has finally been obtained for medium and heavy mass nuclei. |
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institution | Directory Open Access Journal |
issn | 2100-014X |
language | English |
last_indexed | 2024-12-18T08:13:35Z |
publishDate | 2010-03-01 |
publisher | EDP Sciences |
record_format | Article |
series | EPJ Web of Conferences |
spelling | doaj.art-e8cbd484fc54434ab11e6dbdb94121182022-12-21T21:14:51ZengEDP SciencesEPJ Web of Conferences2100-014X2010-03-0120200310.1051/epjconf/20100202003α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrierAvrigeanu M.Avrigeanu V.Recent high-precision measurements α-particle elastic scattering and (α,x) reaction cross sections has motivated the extension of a previous semi-microscopic analysis for the mass-region 50<A<120 and energies from 13 to 50 MeV to heavy nuclei up to 209Bi. The regional optical model potential for low-energy α-particles which has thus been obtained entirely on the basis of elastic-scattering data analysis, for the nuclei within the above-mentioned mass and energy ranges, is involved within the (α,γ), (α,n) and (α,p) reaction cross sections analysis at incident energies below the Coulomb barrier. The statistical-model parameters used for the cross section calculations were established by analyzing various independent experimental data for the involved nuclei, making possible the focus on the uncertainties of α-particle OMP. An optical potential which describe equally well both the low energy elastic-scattering and induced-reaction data of α-particles has finally been obtained for medium and heavy mass nuclei.http://dx.doi.org/10.1051/epjconf/20100202003 |
spellingShingle | Avrigeanu M. Avrigeanu V. α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier EPJ Web of Conferences |
title | α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier |
title_full | α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier |
title_fullStr | α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier |
title_full_unstemmed | α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier |
title_short | α-particles optical potential for medium and heavy-mass nuclei around the Coulomb barrier |
title_sort | α particles optical potential for medium and heavy mass nuclei around the coulomb barrier |
url | http://dx.doi.org/10.1051/epjconf/20100202003 |
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