Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes - Département Recherches Subatomiques
Journal Articles Nature Communications Year : 2023

Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes

1 ANL - Argonne National Laboratory [Lemont]
2 GANIL - Grand Accélérateur National d'Ions Lourds
3 UPC - Universitat Politècnica de Catalunya = Université polytechnique de Catalogne [Barcelona]
4 ILL - Institut Laue-Langevin
5 IBS - Institute for Basic Science [Daejeon]
6 IFUSP - Instituto de Fisica da Universidade de São Paulo
7 CERN [Genève]
8 HZDR - Helmholtz-Zentrum Dresden-Rossendorf
9 INFN - Istituto Nazionale di Fisica Nucleare, Sezione di Milano
10 University of Liverpool
11 Vinča Institute of Nuclear Sciences
12 KTH - KTH Royal Institute of Technology [Stockholm]
13 UNIMI - Università degli Studi di Milano = University of Milan
14 IJCLab - Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
15 UV - Universitat de València
16 IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
17 Institut für Kernphysik der Universität zu Köln
18 ATOMKI - Institute for Nuclear Research [Budapest]
19 IEM - Instituto de Estructura de la Materia
20 INFN, Sezione di Padova - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
21 Unipd - Università degli Studi di Padova = University of Padua
22 Nuclear Physics Institute [Prague]
23 LNL - Laboratori Nazionali di Legnaro
24 Uppsala University
25 Department of Physics, University of Surrey
26 Universidad de Salamanca [España] = University of Salamanca [Spain]
27 IPHC - Institut Pluridisciplinaire Hubert Curien
28 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
29 CEAFMC, University of Huelva
30 LP2I - Bordeaux - Laboratoire de Physique des Deux Infinis Bordeaux
31 Horia Hulubei National Institute for Physics and Nuclear Engineering
Chloé Fougères
Diego Barrientos
  • Function : Author
Daniel Bemmerer
Zsolt Fülöp
Vicente González
Andrea Gottardo
Ayşe Kaşkaş
Johan Nyberg
Menekşe Şenyiğit
Jose Valiente-Dobón
  • Function : Author

Abstract

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 through-out the Galaxy, $^{22}$Na remains untraceable. The half-life of $^{22}$Na (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 the nuclear reactions involved in the production and destruction of this nucleus. 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 reso- nance 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 highly-segmented tracking γ -ray spectrometers, places strong limits on the amount of $^{22}$Na produced in novae, explains its non-observation to date in γ rays (flux < 2.5×10$^{-4}$ ph.cm$^{-2}$ s$^{-1}$), and constrains its detectability with future space-borne observatories.
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Dates and versions

hal-03912454 , version 1 (24-12-2022)
hal-03912454 , version 2 (20-08-2024)

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Chloé Fougères, François de Oliveira Santos, Jordi José, Caterina Michelagnoli, Emmanuel Clément, et al.. Search for $^{22}$Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes. Nature Communications, 2023, 14 (1), pp.4536. ⟨10.1038/s41467-023-40121-3⟩. ⟨hal-03912454v2⟩
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