Ab initio informed evaluation of the radiative capture of protons on 7Be
The radiative capture of protons by 7Be, which is the source of 8B that β-decays emitting the majority of higher-energy solar neutrinos measured on earth, has not yet been measured at astrophysically relevant energies. The recommended value for its zero-energy S-factor, S17(0)=20.8±(0.7)exp±(1.4)the...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-10-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323004902 |
| _version_ | 1797676622348812288 |
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| author | K. Kravvaris P. Navrátil S. Quaglioni C. Hebborn G. Hupin |
| author_facet | K. Kravvaris P. Navrátil S. Quaglioni C. Hebborn G. Hupin |
| author_sort | K. Kravvaris |
| collection | DOAJ |
| description | The radiative capture of protons by 7Be, which is the source of 8B that β-decays emitting the majority of higher-energy solar neutrinos measured on earth, has not yet been measured at astrophysically relevant energies. The recommended value for its zero-energy S-factor, S17(0)=20.8±(0.7)exp±(1.4)theory eV⋅b, relies on theoretical extrapolations from higher-energy measurements, a process that leads to significant uncertainty. We performed a set of first-principle (or, ab initio) calculations of the 7Be(p,γ)8B reaction to provide an independent prediction of the low-energy S-factor with quantified uncertainties. We demonstrate underlying features in the predicted S-factor allowing the combination of theoretical calculations and measurements to produce an evaluated S-factor of S17(0)=19.8±0.3 eV⋅b. We expect the calculations and uncertainty quantification process described here to set a new standard for the evaluation of light-ion astrophysical reactions. |
| first_indexed | 2024-03-11T22:31:54Z |
| format | Article |
| id | doaj.art-7060bd3cadbc42b99259e98062b04693 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-03-11T22:31:54Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-7060bd3cadbc42b99259e98062b046932023-09-23T05:10:30ZengElsevierPhysics Letters B0370-26932023-10-01845138156Ab initio informed evaluation of the radiative capture of protons on 7BeK. Kravvaris0P. Navrátil1S. Quaglioni2C. Hebborn3G. Hupin4Lawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, CA 94551, USA; Corresponding author.TRIUMF, 4004 Wesbrook Mall, Vancouver BC, V6T 2A3, CanadaLawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, CA 94551, USAFacility for Rare Isotope Beams, East Lansing, MI 48824, USA; Lawrence Livermore National Laboratory, P.O. Box 808, L-414, Livermore, CA 94551, USAUniversité Paris-Saclay, CNRS/IN2P3, IJCLab, 91405 Orsay, FranceThe radiative capture of protons by 7Be, which is the source of 8B that β-decays emitting the majority of higher-energy solar neutrinos measured on earth, has not yet been measured at astrophysically relevant energies. The recommended value for its zero-energy S-factor, S17(0)=20.8±(0.7)exp±(1.4)theory eV⋅b, relies on theoretical extrapolations from higher-energy measurements, a process that leads to significant uncertainty. We performed a set of first-principle (or, ab initio) calculations of the 7Be(p,γ)8B reaction to provide an independent prediction of the low-energy S-factor with quantified uncertainties. We demonstrate underlying features in the predicted S-factor allowing the combination of theoretical calculations and measurements to produce an evaluated S-factor of S17(0)=19.8±0.3 eV⋅b. We expect the calculations and uncertainty quantification process described here to set a new standard for the evaluation of light-ion astrophysical reactions.http://www.sciencedirect.com/science/article/pii/S0370269323004902 |
| spellingShingle | K. Kravvaris P. Navrátil S. Quaglioni C. Hebborn G. Hupin Ab initio informed evaluation of the radiative capture of protons on 7Be Physics Letters B |
| title | Ab initio informed evaluation of the radiative capture of protons on 7Be |
| title_full | Ab initio informed evaluation of the radiative capture of protons on 7Be |
| title_fullStr | Ab initio informed evaluation of the radiative capture of protons on 7Be |
| title_full_unstemmed | Ab initio informed evaluation of the radiative capture of protons on 7Be |
| title_short | Ab initio informed evaluation of the radiative capture of protons on 7Be |
| title_sort | ab initio informed evaluation of the radiative capture of protons on 7be |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323004902 |
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