Institute of Crystallography - CNR

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

Neutron destruction reactions of the cosmic ?-ray emitter 26Al are of importance to determine the amount of 26Al ejected into our galaxy by supernova explosions and for 26Al production in asymptotic giant branch stars. We performed a new measurement of the 26Al(n,?) 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.

Physical review. C. Nuclear physics (Print)
Impact factor
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 Beifmmode checkcelse vcfiv'aifmmode checkrelse vrfi, F. and Berthoumieux, E. and Billowes, J. and Bosnar, D. and Brown, A. and Caama~no, M. and Calvi~no, 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 Cort'es, G. and Cort'es-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 Dur'an, I. and Fern'andez-Dom'inguez, B. and Ferrari, A. and Ferreira, P. and Ferrer, F. J. and Finocchiaro, P. and Furman, V. and G"obel, K. and Garc'ia, A. R. and Gawlik, A. and Gilardoni, S. and Glodariu, T. and Gonifmmode mbox?else ?fialves, I. F. and Gonz'alez-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 K"appeler, F. and Kadi, Y. and Kalamara, A. and Kavrigin, P. and Kimura, A. and Kivel, N. and Kokkoris, M. and Krtiifmmode checkcelse vcfika, 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 Mart'inez, 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 Sabat'e-Gilarte, M. and Saxena, A. and Schumann, D. and Sedyshev, P. and Smith, A. G. and Sosnin, N. V. and Stamatopoulos, A. and Tagliente, G. and Tain, J. L. and Tarife~no-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 ifmmode checkZelse vZfiugec, P.
Authors IC CNR