Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties
The weak proton-proton fusion into a deuteron (2H) is the driving reaction in the energy production in the Sun, as well as similar main sequence stars. Its reaction rate in the solar interior is determined only theoretically. Here, we provide a new determination of the rate of this reaction in solar...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-09-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323004276 |
| _version_ | 1797736868347904000 |
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| author | Hilla De-Leon Doron Gazit |
| author_facet | Hilla De-Leon Doron Gazit |
| author_sort | Hilla De-Leon |
| collection | DOAJ |
| description | The weak proton-proton fusion into a deuteron (2H) is the driving reaction in the energy production in the Sun, as well as similar main sequence stars. Its reaction rate in the solar interior is determined only theoretically. Here, we provide a new determination of the rate of this reaction in solar conditions S11(0), and analyze theoretical and experimental sources for uncertainties, using effective field theory of Quantum Chromodynamics without explicit pions at next-to-leading order. This prediction procedure is verified and validated using experimentally measured set of electromagnetic reactions, which we show to be analogous in their operator structure and properties to the weak sector, and are reproduced within the assessed theoretical uncertainty, using the same approach. We find an enhancement of S11 by 1−4% over the previously recommended value. This change reduces the calculated fluxes of neutrinos originating in 8B and 7Be nuclear reactions in the Sun, thus favoring higher abundances for metallic photospheric elements, in the tension between different composition determination, known as the “Solar Composition Problem”. |
| first_indexed | 2024-03-12T13:20:15Z |
| format | Article |
| id | doaj.art-460142fc56294e94a19664493167fed3 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-03-12T13:20:15Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-460142fc56294e94a19664493167fed32023-08-26T04:42:34ZengElsevierPhysics Letters B0370-26932023-09-01844138093Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertaintiesHilla De-Leon0Doron Gazit1Racah Institute of Physics, The Hebrew University, 9190401 Jerusalem, Israel; INFN-TIFPA Trento Institute of Fundamental Physics and Applications, Via Sommarive, 14, 38123 Povo (TN), Italy; European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Strada delle Tabarelle 286, I-38123 Villazzano (TN), ItalyRacah Institute of Physics, The Hebrew University, 9190401 Jerusalem, Israel; Corresponding author.The weak proton-proton fusion into a deuteron (2H) is the driving reaction in the energy production in the Sun, as well as similar main sequence stars. Its reaction rate in the solar interior is determined only theoretically. Here, we provide a new determination of the rate of this reaction in solar conditions S11(0), and analyze theoretical and experimental sources for uncertainties, using effective field theory of Quantum Chromodynamics without explicit pions at next-to-leading order. This prediction procedure is verified and validated using experimentally measured set of electromagnetic reactions, which we show to be analogous in their operator structure and properties to the weak sector, and are reproduced within the assessed theoretical uncertainty, using the same approach. We find an enhancement of S11 by 1−4% over the previously recommended value. This change reduces the calculated fluxes of neutrinos originating in 8B and 7Be nuclear reactions in the Sun, thus favoring higher abundances for metallic photospheric elements, in the tension between different composition determination, known as the “Solar Composition Problem”.http://www.sciencedirect.com/science/article/pii/S0370269323004276 |
| spellingShingle | Hilla De-Leon Doron Gazit Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties Physics Letters B |
| title | Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties |
| title_full | Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties |
| title_fullStr | Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties |
| title_full_unstemmed | Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties |
| title_short | Theoretical evaluation of solar proton-proton fusion reaction rate and its uncertainties |
| title_sort | theoretical evaluation of solar proton proton fusion reaction rate and its uncertainties |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323004276 |
| work_keys_str_mv | AT hilladeleon theoreticalevaluationofsolarprotonprotonfusionreactionrateanditsuncertainties AT dorongazit theoreticalevaluationofsolarprotonprotonfusionreactionrateanditsuncertainties |