%0 Journal Article
%T Destruction of the cosmic gamma-ray emitter Al-26 in massive stars: Study of the key Al-26(n, alpha) reaction
%A n_TOF Collaboration (Lederer-Woods, C. et al
%A Domingo-Pardo, C.
%A Tain, J. L.
%J Physical Review C
%D 2021
%V 104
%N 3
%I Amer Physical Soc
%@ 2469-9985
%G English
%F n_TOFCollaborationLederer-Woods_etal2021
%O WOS:000704560300002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4988), last updated on Sun, 24 Oct 2021 18:02:09 +0000
%X Neutron destruction reactions of the cosmic gamma-ray emitter Al-26 are of importance to determine the amount of Al-26 ejected into our galaxy by supernova explosions and for Al-26 production in asymptotic giant branch stars. We performed a new measurement of the Al-26(n, alpha) reaction up to 160-keV neutron energy at the neutron time-of-flight facilities n_TOF at CERN and GELINA at EC-JRC. We provide strengths for ten resonances, six of them for the first time. We use our data to calculate astrophysical reactivities for stellar temperatures up to 0.7 GK. Our results resolve a discrepancy between the two previous direct measurements of this reaction, and indicate higher stellar destruction rates than the most recently recommended reactivity.
%R 10.1103/PhysRevC.104.L032803
%U https://doi.org/10.1103/PhysRevC.104.L032803
%P L032803 - 6pp