Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component
The observation of oxygen isotopes in giant stars sheds light on mixing processes operating in their interiors. Due to the very strong correlation between nuclear burning and mixing processes it is very important to reduce the uncertainty on the cross sections of the nuclear reactions that are invol...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2019-10-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269319306227 |
| _version_ | 1818856126709497856 |
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| author | A. Best F.R. Pantaleo A. Boeltzig G. Imbriani M. Aliotta J. Balibrea-Correa D. Bemmerer C. Broggini C.G. Bruno R. Buompane A. Caciolli F. Cavanna T. Chillery G.F. Ciani P. Corvisiero L. Csedreki T. Davinson R.J. deBoer R. Depalo A. Di Leva Z. Elekes F. Ferraro E.M. Fiore A. Formicola Zs. Fülöp G. Gervino A. Guglielmetti C. Gustavino Gy. Gyürky M. Junker I. Kochanek M. Lugaro P. Marigo R. Menegazzo V. Mossa V. Paticchio R. Perrino D. Piatti P. Prati L. Schiavulli K. Stöckel O. Straniero F. Strieder T. Szücs M.P. Takács D. Trezzi M. Wiescher S. Zavatarelli |
| author_facet | A. Best F.R. Pantaleo A. Boeltzig G. Imbriani M. Aliotta J. Balibrea-Correa D. Bemmerer C. Broggini C.G. Bruno R. Buompane A. Caciolli F. Cavanna T. Chillery G.F. Ciani P. Corvisiero L. Csedreki T. Davinson R.J. deBoer R. Depalo A. Di Leva Z. Elekes F. Ferraro E.M. Fiore A. Formicola Zs. Fülöp G. Gervino A. Guglielmetti C. Gustavino Gy. Gyürky M. Junker I. Kochanek M. Lugaro P. Marigo R. Menegazzo V. Mossa V. Paticchio R. Perrino D. Piatti P. Prati L. Schiavulli K. Stöckel O. Straniero F. Strieder T. Szücs M.P. Takács D. Trezzi M. Wiescher S. Zavatarelli |
| author_sort | A. Best |
| collection | DOAJ |
| description | The observation of oxygen isotopes in giant stars sheds light on mixing processes operating in their interiors. Due to the very strong correlation between nuclear burning and mixing processes it is very important to reduce the uncertainty on the cross sections of the nuclear reactions that are involved. In this paper we focus our attention on the reaction O18(p,γ)19F. While the O18(p,α)15N channel is thought to be dominant, the (p,γ) channel can still be an important component in stellar burning in giants, depending on the low energy cross section. So far only extrapolations from higher-energy measurements exist and recent estimates vary by orders of magnitude. These large uncertainties call for an experimental reinvestigation of this reaction. We present a direct measurement of the O18(p,γ)19F cross section using a high-efficiency 4π BGO summing detector at the Laboratory for Underground Nuclear Astrophysics (LUNA). The reaction cross section has been directly determined for the first time from 140 keV down to 85 keV and the different cross section components have been obtained individually. The previously highly uncertain strength of the 90 keV resonance was found to be 0.53 ± 0.07 neV, three orders of magnitude lower than an indirect estimate based on nuclear properties of the resonant state and a factor of 20 lower than a recently established upper limit, excluding the possibility that the 90 keV resonance can contribute significantly to the stellar reaction rate. Keywords: Experimental nuclear astrophysics, Underground nuclear physics, Hydrogen burning, Stellar evolution |
| first_indexed | 2024-12-19T08:19:33Z |
| format | Article |
| id | doaj.art-7d5d31494f6f44909cbf74e3447c53ef |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-19T08:19:33Z |
| publishDate | 2019-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-7d5d31494f6f44909cbf74e3447c53ef2022-12-21T20:29:26ZengElsevierPhysics Letters B0370-26932019-10-01797Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture componentA. Best0F.R. Pantaleo1A. Boeltzig2G. Imbriani3M. Aliotta4J. Balibrea-Correa5D. Bemmerer6C. Broggini7C.G. Bruno8R. Buompane9A. Caciolli10F. Cavanna11T. Chillery12G.F. Ciani13P. Corvisiero14L. Csedreki15T. Davinson16R.J. deBoer17R. Depalo18A. Di Leva19Z. Elekes20F. Ferraro21E.M. Fiore22A. Formicola23Zs. Fülöp24G. Gervino25A. Guglielmetti26C. Gustavino27Gy. Gyürky28M. Junker29I. Kochanek30M. Lugaro31P. Marigo32R. Menegazzo33V. Mossa34V. Paticchio35R. Perrino36D. Piatti37P. Prati38L. Schiavulli39K. Stöckel40O. Straniero41F. Strieder42T. Szücs43M.P. Takács44D. Trezzi45M. Wiescher46S. Zavatarelli47Università degli Studi di Napoli “Federico II”, Dipartimento di Fisica “E. Pancini”, Via Cintia 21, 80126 Napoli, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia 21, 80126 Napoli, Italy; Corresponding author at: Università degli Studi di Napoli “Federico II”, Dipartimento di Fisica “E. Pancini”, Via Cintia 21, 80126 Napoli, Italy.Università degli Studi di Bari, Dipartimento Interateneo di Fisica, Via G. Amendola 173, 70126 Bari, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via E. Orabona 4, 70125 Bari, ItalyGran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila, Italy; The Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA; Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, ItalyUniversità degli Studi di Napoli “Federico II”, Dipartimento di Fisica “E. Pancini”, Via Cintia 21, 80126 Napoli, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia 21, 80126 Napoli, ItalySchool of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, EH9 3FD Edinburgh, United KingdomUniversità degli Studi di Napoli “Federico II”, Dipartimento di Fisica “E. Pancini”, Via Cintia 21, 80126 Napoli, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia 21, 80126 Napoli, ItalyHelmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, GermanyIstituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, ItalySchool of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, EH9 3FD Edinburgh, United KingdomIstituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia 21, 80126 Napoli, Italy; Università degli Studi della Campania “L. Vanvitelli”, Dipartimento di Matematica e Fisica, Viale Lincoln 5, 81100 Caserta, ItalyUniversità degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, ItalySchool of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, EH9 3FD Edinburgh, United KingdomGran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila, Italy; Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, ItalyUniversità degli Studi di Genova, Via Dodecaneso 33, 16146 Genova, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, ItalyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, Italy; Gran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila, ItalySchool of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, EH9 3FD Edinburgh, United KingdomThe Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USAUniversità degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, ItalyUniversità degli Studi di Napoli “Federico II”, Dipartimento di Fisica “E. Pancini”, Via Cintia 21, 80126 Napoli, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Via Cintia 21, 80126 Napoli, ItalyInstitute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, 4001 Debrecen, HungaryUniversità degli Studi di Genova, Via Dodecaneso 33, 16146 Genova, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, ItalyUniversità degli Studi di Bari, Dipartimento Interateneo di Fisica, Via G. Amendola 173, 70126 Bari, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via E. Orabona 4, 70125 Bari, ItalyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, ItalyInstitute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, 4001 Debrecen, HungaryUniversità degli Studi di Torino, Via P. Giuria 1, 10125 Torino, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Torino, Via P. Giuria 1, 10125 Torino, ItalyUniversità degli Studi di Milano, Via G. Celoria 16, 20133 Milano, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via G. Celoria 16, 20133 Milano, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Roma, Piazzale A. Moro 2, 00185 Roma, ItalyInstitute for Nuclear Research of the Hungarian Academy of Sciences (MTA Atomki), PO Box 51, 4001 Debrecen, HungaryIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, Italy; Gran Sasso Science Institute, Viale F. Crispi 7, 67100 L'Aquila, ItalyIstituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, ItalyKonkoly Observatory, Research Centre for Astronomy and Earth Sciences, Hungarian Academy of Sciences, 1121 Budapest, HungaryIstituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, Italy; Università degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, ItalyUniversità degli Studi di Bari, Dipartimento Interateneo di Fisica, Via G. Amendola 173, 70126 Bari, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via E. Orabona 4, 70125 Bari, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Bari, Via E. Orabona 4, 70125 Bari, ItalyIstituto Nazionale di Fisica Nucleare, Sezione di Bari, Via E. Orabona 4, 70125 Bari, ItalyUniversità degli Studi di Padova, Via F. Marzolo 8, 35131 Padova, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Padova, Via F. Marzolo 8, 35131 Padova, ItalyUniversità degli Studi di Genova, Via Dodecaneso 33, 16146 Genova, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, ItalyUniversità degli Studi di Bari, Dipartimento Interateneo di Fisica, Via G. Amendola 173, 70126 Bari, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Via E. Orabona 4, 70125 Bari, ItalyHelmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany; Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, GermanyINAF – Osservatorio Astronomico d'Abruzzo, Via Mentore Maggini, 64100 Teramo, Italy; Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso (LNGS), Via G. Acitelli 22, 67100 Assergi, ItalyDepartment of Physics, South Dakota School of Mines and Technology, 501E St Joseph Street, Rapid City, SD 57701, USAHelmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, GermanyHelmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany; Technische Universität Dresden, Institut für Kern- und Teilchenphysik, Zellescher Weg 19, 01069 Dresden, GermanyUniversità degli Studi di Milano, Via G. Celoria 16, 20133 Milano, Italy; Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Via G. Celoria 16, 20133 Milano, ItalyThe Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USAIstituto Nazionale di Fisica Nucleare, Sezione di Genova, Via Dodecaneso 33, 16146 Genova, ItalyThe observation of oxygen isotopes in giant stars sheds light on mixing processes operating in their interiors. Due to the very strong correlation between nuclear burning and mixing processes it is very important to reduce the uncertainty on the cross sections of the nuclear reactions that are involved. In this paper we focus our attention on the reaction O18(p,γ)19F. While the O18(p,α)15N channel is thought to be dominant, the (p,γ) channel can still be an important component in stellar burning in giants, depending on the low energy cross section. So far only extrapolations from higher-energy measurements exist and recent estimates vary by orders of magnitude. These large uncertainties call for an experimental reinvestigation of this reaction. We present a direct measurement of the O18(p,γ)19F cross section using a high-efficiency 4π BGO summing detector at the Laboratory for Underground Nuclear Astrophysics (LUNA). The reaction cross section has been directly determined for the first time from 140 keV down to 85 keV and the different cross section components have been obtained individually. The previously highly uncertain strength of the 90 keV resonance was found to be 0.53 ± 0.07 neV, three orders of magnitude lower than an indirect estimate based on nuclear properties of the resonant state and a factor of 20 lower than a recently established upper limit, excluding the possibility that the 90 keV resonance can contribute significantly to the stellar reaction rate. Keywords: Experimental nuclear astrophysics, Underground nuclear physics, Hydrogen burning, Stellar evolutionhttp://www.sciencedirect.com/science/article/pii/S0370269319306227 |
| spellingShingle | A. Best F.R. Pantaleo A. Boeltzig G. Imbriani M. Aliotta J. Balibrea-Correa D. Bemmerer C. Broggini C.G. Bruno R. Buompane A. Caciolli F. Cavanna T. Chillery G.F. Ciani P. Corvisiero L. Csedreki T. Davinson R.J. deBoer R. Depalo A. Di Leva Z. Elekes F. Ferraro E.M. Fiore A. Formicola Zs. Fülöp G. Gervino A. Guglielmetti C. Gustavino Gy. Gyürky M. Junker I. Kochanek M. Lugaro P. Marigo R. Menegazzo V. Mossa V. Paticchio R. Perrino D. Piatti P. Prati L. Schiavulli K. Stöckel O. Straniero F. Strieder T. Szücs M.P. Takács D. Trezzi M. Wiescher S. Zavatarelli Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component Physics Letters B |
| title | Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component |
| title_full | Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component |
| title_fullStr | Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component |
| title_full_unstemmed | Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component |
| title_short | Cross section of the reaction 18O(p,γ)19F at astrophysical energies: The 90 keV resonance and the direct capture component |
| title_sort | cross section of the reaction 18o p γ 19f at astrophysical energies the 90 kev resonance and the direct capture component |
| url | http://www.sciencedirect.com/science/article/pii/S0370269319306227 |
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