Search for Na-22 in novae supported by a novel method for measuring femtosecond nuclear lifetimes

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Fougeres, Chloe, Santos, Francois de Oliveira, Jose, Jordi, Michelagnoli, Caterina, Clement, Emmanuel, Kim, Yung Hee, Lemasson, Antoine, Guimaraes, Valdir, Barrientos, Diego, Bemmerer, Daniel et al (show 52 more authors) , Benzoni, Giovanna, Boston, Andrew J, Bottger, Roman, Boulay, Florent, Bracco, Angela, Celikovic, Igor, Cederwall, Bo, Ciemala, Michal, Delafosse, Clement, Domingo-Pardo, Cesar, Dudouet, Jeremie, Eberth, Juergen, Fulop, Zsolt, Gonzalez, Vicente, Gottardo, Andrea, Goupil, Johan, Hess, Herbert, Jungclaus, Andrea, Kaskas, Ayse, Korichi, Amel, Lenzi, Silvia M, Leoni, Silvia, Li, Hongjie, Ljungvall, Joa, Lopez-Martens, Araceli, Menegazzo, Roberto, Mengoni, Daniele, Million, Benedicte, Mrazek, Jaromir, Napoli, Daniel R, Navin, Alahari, Nyberg, Johan, Podolyak, Zsolt, Pullia, Alberto, Quintana, Begona, Ralet, Damien, Redon, Nadine, Reiter, Peter, Rezynkina, Kseniia, Saillant, Frederic, Salsac, Marie-Delphine, Sanchez-Benitez, Angel M, Sanchis, Enrique, Senyigit, Menekse, Siciliano, Marco, Smirnova, Nadezda A, Sohler, Dorottya, Stanoiu, Mihai, Theisen, Christophe, Valiente-Dobon, Jose J, Ujic, Predrag and Zielinska, Magdalena (2023) Search for Na-22 in novae supported by a novel method for measuring femtosecond nuclear lifetimes. NATURE COMMUNICATIONS, 14 (1). 4536-. ISSN 2041-1723, 2041-1723

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Abstract

Classical novae are thermonuclear explosions in stellar binary systems, and important sources of ²⁶Al and ²²Na. While γ rays from the decay of the former radioisotope have been observed throughout the Galaxy, ²²Na 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 ²²Na(p, γ)²³Mg reaction remains the only source of large uncertainty about the amount of ²²Na ejected. Its rate is dominated by a single resonance on the short-lived state at 7785.0(7) keV in ²³Mg. 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 ²³Mg states, places strong limits on the amount of ²²Na produced in novae and constrains its detectability with future space-borne observatories.

Item Type:	Article
Uncontrolled Keywords:	5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	02 Oct 2023 09:47
Last Modified:	06 Dec 2024 18:42
DOI:	10.1038/s41467-023-40121-3
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3173265