التفاصيل البيبلوغرافية
| العنوان: |
Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes |
| المؤلفون: |
Fougères, Chloé, de Oliveira Santos, François, José, Jordi, Michelagnoli, Caterina, Clément, Emmanuel, Kim, Yung Hee, Lemasson, Antoine, Guimarães, Valdir, Barrientos, Diego, Bemmerer, Daniel, Benzoni, Giovanna, Boston, Andrew J., Böttger, Roman, Boulay, Florent, Bracco, Angela, Čeliković, Igor, Cederwall, B., Ciemala, Michał, Delafosse, Clément, Domingo-Pardo, César, Dudouet, Jérémie, Eberth, Jürgen, Fülöp, Zsolt, González, Vicente, Gottardo, Andrea, Goupil, Johan, Hess, Herbert, Jungclaus, Andrea, Kaşkaş, Ayşe, Korichi, Amel, Lenzi, Silvia M., Leoni, Silvia, Li, Hongjie, Ljungvall, Joa, Lopez-Martens, Araceli, Menegazzo, Roberto, Mengoni, Daniele, Million, Benedicte, Mrázek, Jaromír, Napoli, Daniel R., Navin, Alahari, Nyberg, Johan, Podolyák, Zsolt, Pullia, Alberto, Quintana, Begoña, Ralet, Damien, Redon, Nadine, Reiter, Peter, Rezynkina, Kseniia, Saillant, Frédéric, Salsac, Marie-Delphine, Sánchez-Benítez, Angel M., Sanchis, Enrique, Şenyiğit, Menekşe, Siciliano, Marco, Smirnova, Nadezda A., Sohler, Dorottya, Stanoiu, Mihai, Theisen, Christophe, Valiente-Dobón, Jose J., Ujić, Predrag, Zielińska, Magdalena |
| سنة النشر: |
2022 |
| المجموعة: |
CERN Document Server (CDS) |
| مصطلحات موضوعية: |
astro-ph.SR, Astrophysics and Astronomy, astro-ph.HE, nucl-ex, Nuclear Physics - Experiment |
| الوصف: |
Classical novae are thermonuclear explosions in stellar binary systems, and important sources of $^{26}$Al and $^{22}$Na. While γ rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na remains untraceable. Its half-life (2.6 yr) would allow the observation of its 1.275 MeV γ-ray line from a cosmic source. However, the prediction of such an observation requires good knowledge of its nucleosynthesis. The $^{22}$Na(p, γ)$^{23}$Mg reaction remains the only source of large uncertainty about the amount of $^{22}$Na ejected. Its rate is dominated by a single resonance on the short-lived state at 7785.0(7) keV in $^{23}$Mg. Here, we propose a combined analysis of particle-particle correlations and velocity-difference profiles to measure femtosecond nuclear lifetimes. The application of this method to the study of the $^{23}$Mg states, places strong limits on the amount of $^{22}$Na produced in novae and constrains its detectability with future space-borne observatories. ; Classical novae are thermonuclear explosions in stellar binary systems, and important sources of $^{26}$Al and $^{22}$Na. While gamma rays from the decay of the former radioisotope have been observed throughout the Galaxy, $^{22}$Na remains untraceable. The half-life of $^{22}$Na (2.6 yr) would allow the observation of its 1.275 MeV gamma-ray line from a cosmic source. However, the prediction of such an observation requires good knowledge of the nuclear reactions involved in the production and destruction of this nucleus. The $^{22}$Na($p,\gamma$)$^{23}$Mg reaction remains the only source of large uncertainty about the amount of $^{22}$Na ejected. Its rate is dominated by a single resonance on the short-lived state at 7785.0(7) keV in $^{23}$Mg. In the present work, a combined analysis of particle-particle correlations and velocity-difference profiles is proposed to measure femtosecond nuclear lifetimes. The application of this novel method to the study of the $^{23}$Mg states, combining magnetic and ... |
| نوع الوثيقة: |
other/unknown material |
| اللغة: |
English |
| العلاقة: |
http://cds.cern.ch/record/2845279Test; arXiv:2212.06302; oai:cds.cern.ch:2845279 |
| DOI: |
10.1038/s41467-023-40121-3 |
| الإتاحة: |
https://doi.org/10.1038/s41467-023-40121-3Test
http://cds.cern.ch/record/2845279Test |
| رقم الانضمام: |
edsbas.FEBA8D6C |
| قاعدة البيانات: |
BASE |
