Neutron-Driven Nucleosynthesis in Stellar Plasma
A large uncertainty for the slow neutron capture nucleosynthesis (s-process) models is caused by the amount of neutrons available to the process itself. This quantity is strongly affected by the 13C(α,n)16O, and 22Ne(α,n)25Mg reaction cross sections, whose measurements at energies corresponding to t...
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Frontiers Media S.A.
2022-05-01
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2022.896011/full |
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| author | R. Spartà M. La Cognata G. L. Guardo G. L. Guardo S. Palmerini S. Palmerini M. L. Sergi M. L. Sergi G. D’Agata G. D’Agata L. Lamia L. Lamia L. Lamia D. Lattuada D. Lattuada A. A. Oliva A. A. Oliva R. G. Pizzone G. G. Rapisarda G. G. Rapisarda S. Romano S. Romano S. Romano A. Tumino A. Tumino |
| author_facet | R. Spartà M. La Cognata G. L. Guardo G. L. Guardo S. Palmerini S. Palmerini M. L. Sergi M. L. Sergi G. D’Agata G. D’Agata L. Lamia L. Lamia L. Lamia D. Lattuada D. Lattuada A. A. Oliva A. A. Oliva R. G. Pizzone G. G. Rapisarda G. G. Rapisarda S. Romano S. Romano S. Romano A. Tumino A. Tumino |
| author_sort | R. Spartà |
| collection | DOAJ |
| description | A large uncertainty for the slow neutron capture nucleosynthesis (s-process) models is caused by the amount of neutrons available to the process itself. This quantity is strongly affected by the 13C(α,n)16O, and 22Ne(α,n)25Mg reaction cross sections, whose measurements at energies corresponding to the s-process thermal conditions (∼102 keV) are mainly hampered by the Coulomb barrier. For this reason, indirect approaches could offer a complementary way of investigation and, among these, the Trojan Horse Method (THM) has been applied to determine these cross sections overcoming the Coulomb barrier. With this approach, a low-energy binary reaction cross section can be obtained selecting the quasi-free contribution from a suitable three-body reaction cross section, taking advantage of the cluster structure of proper nuclei. |
| first_indexed | 2024-12-12T19:16:23Z |
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| issn | 2296-424X |
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| last_indexed | 2024-12-12T19:16:23Z |
| publishDate | 2022-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-06770c37d3174fc8ab593c2be45214b02022-12-22T00:14:42ZengFrontiers Media S.A.Frontiers in Physics2296-424X2022-05-011010.3389/fphy.2022.896011896011Neutron-Driven Nucleosynthesis in Stellar PlasmaR. Spartà0M. La Cognata1G. L. Guardo2G. L. Guardo3S. Palmerini4S. Palmerini5M. L. Sergi6M. L. Sergi7G. D’Agata8G. D’Agata9L. Lamia10L. Lamia11L. Lamia12D. Lattuada13D. Lattuada14A. A. Oliva15A. A. Oliva16R. G. Pizzone17G. G. Rapisarda18G. G. Rapisarda19S. Romano20S. Romano21S. Romano22A. Tumino23A. Tumino24Laboratori Nazionali del Sud, INFN, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyDipartimento di Fisica e Geologia, Università degli Studi di Perugia, Perugia, ItalyINFN sezione di Perugia, Perugia, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyCentro Siciliano di Fisica Nucleare e Struttra della Materia, CSFNSM, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyFacoltà di Ingegneria e Architettura, Università degli Studi di Enna “Kore”, Enna, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyDipartimento Fisica e Astronomia “Ettore Majorana”, Università degli Studi di Catania, Catania, ItalyCentro Siciliano di Fisica Nucleare e Struttra della Materia, CSFNSM, Catania, ItalyLaboratori Nazionali del Sud, INFN, Catania, ItalyFacoltà di Ingegneria e Architettura, Università degli Studi di Enna “Kore”, Enna, ItalyA large uncertainty for the slow neutron capture nucleosynthesis (s-process) models is caused by the amount of neutrons available to the process itself. This quantity is strongly affected by the 13C(α,n)16O, and 22Ne(α,n)25Mg reaction cross sections, whose measurements at energies corresponding to the s-process thermal conditions (∼102 keV) are mainly hampered by the Coulomb barrier. For this reason, indirect approaches could offer a complementary way of investigation and, among these, the Trojan Horse Method (THM) has been applied to determine these cross sections overcoming the Coulomb barrier. With this approach, a low-energy binary reaction cross section can be obtained selecting the quasi-free contribution from a suitable three-body reaction cross section, taking advantage of the cluster structure of proper nuclei.https://www.frontiersin.org/articles/10.3389/fphy.2022.896011/fullneutron induced reactionsstellar evolutionnucleosynthesisindirect processs-process |
| spellingShingle | R. Spartà M. La Cognata G. L. Guardo G. L. Guardo S. Palmerini S. Palmerini M. L. Sergi M. L. Sergi G. D’Agata G. D’Agata L. Lamia L. Lamia L. Lamia D. Lattuada D. Lattuada A. A. Oliva A. A. Oliva R. G. Pizzone G. G. Rapisarda G. G. Rapisarda S. Romano S. Romano S. Romano A. Tumino A. Tumino Neutron-Driven Nucleosynthesis in Stellar Plasma Frontiers in Physics neutron induced reactions stellar evolution nucleosynthesis indirect process s-process |
| title | Neutron-Driven Nucleosynthesis in Stellar Plasma |
| title_full | Neutron-Driven Nucleosynthesis in Stellar Plasma |
| title_fullStr | Neutron-Driven Nucleosynthesis in Stellar Plasma |
| title_full_unstemmed | Neutron-Driven Nucleosynthesis in Stellar Plasma |
| title_short | Neutron-Driven Nucleosynthesis in Stellar Plasma |
| title_sort | neutron driven nucleosynthesis in stellar plasma |
| topic | neutron induced reactions stellar evolution nucleosynthesis indirect process s-process |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2022.896011/full |
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