@Article{Fougeres+Domingo-Pardo2023,
author="Fougeres, C. et al
and Domingo-Pardo, C.",
title="Search for Na-22 in novae supported by a novel method for measuring femtosecond nuclear lifetimes",
journal="Nature Communications",
year="2023",
publisher="Nature Portfolio",
volume="14",
number="1",
pages="4536--7pp",
abstract="Classical novae are thermonuclear explosions in stellar binary systems, and important sources of Al-26 and Na-22. While ? rays from the decay of the former radioisotope have been observed throughout the Galaxy, Na-22 remains untraceable. Its half-life (2.6 yr) would allow the observation of its 1.275 MeV ?-ray line from a cosmic source. However, the prediction of such an observation requires good knowledge of its nucleosynthesis. The Na-22(p, ?)Mg-23 reaction remains the only source of large uncertainty about the amount of Na-22 ejected. Its rate is dominated by a single resonance on the short-lived state at 7785.0(7) keV in Mg-23. 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 Mg-23 states, places strong limits on the amount of Na-22 produced in novae and constrains its detectability with future space-borne observatories. The authors report a particle-particle correlation and velocity-difference profile method to measure nuclear lifetime. The results obtained for excited states of 23Mg are used to constrain the production of 22Na in the astrophysical novae explosions.",
optnote="WOS:001063751200012",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5671), last updated on Fri, 29 Sep 2023 09:11:42 +0000",
doi="10.1038/s41467-023-40121-3",
opturl="https://arxiv.org/abs/2212.06302",
opturl="https://doi.org/10.1038/s41467-023-40121-3",
language="English"
}