TY  - JOUR
AU  - n_TOF Collaboration (Lederer-Woods, C. et al
AU  - Domingo-Pardo, C.
AU  - Tain, J. L.
PY  - 2021
DA  - 2021//
TI  - Destruction of the cosmic gamma-ray emitter Al-26 in massive stars: Study of the key Al-26(n, alpha) reaction
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - L032803 - 6pp
VL  - 104
IS  - 3
PB  - Amer Physical Soc
AB  - 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.
SN  - 2469-9985
UR  - https://doi.org/10.1103/PhysRevC.104.L032803
DO  - 10.1103/PhysRevC.104.L032803
LA  - English
N1  - WOS:000704560300002
ID  - n_TOFCollaborationLederer-Woods_etal2021
ER  -