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Destruction of the cosmic gamma-ray emitter Al-26 in massive stars: Study of the key Al-26(n, alpha) reaction

Lederer-Woods, C. and Woods, P. J. and Davinson, T. and Estrade, A. and Heyse, J. and Kahl, D. and Lonsdale, S. J. and Paradela, C. and Schillebeeckx, P. and Aberle, O. and Amaducci, S. and Andrzejewski, J. and Audouin, L. and Bacak, M. and Balibrea, J. and Barbagallo, M. and Becvar, F. and Berthoumieux, E. and Billowes, J. and Bosnar, D. and Brown, A. and Caamano, M. and Calvino, F. and Calviani, M. and Cano-Ott, D. and Cardella, R. and Casanovas, A. and Cerutti, F. and Chen, Y. H. and Chiaveri, E. and Colonna, N. and Cortes, G. and Cortes-Giraldo, M. A. and Cosentino, L. and Cristallo, S. and Damone, L. A. and Diakaki, M. and Domingo-Pardo, C. and Dressler, R. and Dupont, E. and Duran, I. and Fernandez-Dominguez, B. and Ferrari, A. and Ferreira, P. and Ferrer, F. J. and Finocchiaro, P. and Furman, V. and Goebel, K. and Garcia, A. R. and Gawlik, A. and Gilardoni, S. and Glodariu, T. and Goncalves, I. F. and Gonzalez-Romero, E. and Griesmayer, E. and Guerrero, C. and Gunsing, F. and Harada, H. and Heinitz, S. and Jenkins, D. G. and Jericha, E. and Kaeppeler, F. and Kadi, Y. and Kalamara, A. and Kavrigin, P. and Kimura, A. and Kivel, N. and Kokkoris, M. and Krticka, M. and Kurtulgil, D. and Leal-Cidoncha, E. and Leeb, H. and Lerendegui-Marco, J. and Lo Meo, S. and Macina, D. and Manna, A. and Marganiec, J. and Martinez, T. and Masi, A. and Massimi, C. and Mastinu, P. and Mastromarco, M. and Maugeri, E. A. and Mazzone, A. and Mendoza, E. and Mengoni, A. and Milazzo, P. M. and Mingrone, F. and Musumarra, A. and Negret, A. and Nolte, R. and Oprea, A. and Patronis, N. and Pavlik, A. and Perkowski, J. and Porras, I. and Praena, J. and Quesada, J. M. and Radeck, D. and Rauscher, T. and Reifarth, R. and Rubbia, C. and Ryan, J. A. and Sabate-Gilarte, M. and Saxena, A. and Schumann, D. and Sedyshev, P. and Smith, A. G. and Sosnin, N. and Stamatopoulos, A. and Tagliente, G. and Tain, J. L. and Tarifeno-Saldivia, A. and Tassan-Got, L. and Valenta, S. and Vannini, G. and Variale, V. and Vaz, P. and Ventura, A. and Vlachoudis, V. and Vlastou, R. and Wallner, A. and Warren, S. and Weiss, C. and Wright, T. and Zugec, P.. (2021) Destruction of the cosmic gamma-ray emitter Al-26 in massive stars: Study of the key Al-26(n, alpha) reaction. Physical Review C, 104 (3). ARTN L032803.

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Abstract

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.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Physical Society
ISSN:2469-9985
e-ISSN:2469-9993
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:03 Nov 2021 13:56
Deposited On:03 Nov 2021 13:47

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