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

Lederer-Woods, C. and Woods, P. J. and Davinson, T. and Kahl, D. and Lonsdale, S. J. 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 Heyse, J. 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 Schillebeeckx, P. 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, p) reaction. Physical Review C, 104 (2). L022803.

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Abstract

The 26Al(n,p)26Mg reaction is the key reaction impacting on the abundances of the cosmic γ-ray emitter 26Al produced in massive stars and impacts on the potential pollution of the early solar system with 26Al by asymptotic giant branch stars. We performed a measurement of the 26Al(n,p)26Mg cross section at the high-flux beam line EAR-2 at the n_TOF facility (CERN). We report resonance strengths for eleven resonances, nine being measured for the first time, while there is only one previous measurement for the other two. Our resonance strengths are significantly lower than the only previous values available. Our cross-section data range to 150 keV neutron energy, which is sufficient for a reliable determination of astrophysical reactivities up to 0.5 GK stellar temperature.
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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edoc DOI:
Last Modified:03 Nov 2021 13:42
Deposited On:05 Oct 2021 10:30

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