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D(18F,pa)15N reaction applied to nova gamma-ray emission by de Sereville, N.; Coc, A.; Angulo, C.; Assuncao, M.; Beaumel, D.; Bouzid, B.; Cherubini, S.; Couder, M.; Demaret, P.; Santos, F. de Oliveira; Figuera, P.; Fortier, S.; Gaelens, M.; Hammache, F.; Kiener, J.; Labar, D.; Lefebvre, A.; Leleux, P.; Loiselet, M.; Ninane, A.; Ouichaoui, S.; Ryckewaert, G.; Smirnova, N.; Tatischeff, V.; Thibaud, J. -P. is a scholarly article available to read on EtoBox.

What is D(18F,pa)15N reaction applied to nova gamma-ray emission about?

The 18F(p,alpha)15O reaction is recognized to be one of the most important reactions for nova gamma-ray astronomy as it governs the early E <= 511keV gamma emission. However in the nova temperature regime, its rate remains largely uncertain due to unknown low-energy resonance strengths. We report here the measurement of the D(18F,p)19F(alpha)15N one-nucleon transfer reaction, induced by a 14 MeV 18F radioactive beam impinging on a CD2 target; outgoing protons and 15N (or alpha-particles) were detected in coincidence in two silicon strip detectors. A DWBA analysis of the data resulted in new limits to the contribution of low-energy resonances to the rate of the 18F(p,alpha)15O reaction.

Author

de Sereville, N.; Coc, A.; Angulo, C.; Assuncao, M.; Beaumel, D.; Bouzid, B.; Cherubini, S.; Couder, M.; Demaret, P.; Santos, F. de Oliveira; Figuera, P.; Fortier, S.; Gaelens, M.; Hammache, F.; Kiener, J.; Labar, D.; Lefebvre, A.; Leleux, P.; Loiselet, M.; Ninane, A.; Ouichaoui, S.; Ryckewaert, G.; Smirnova, N.; Tatischeff, V.; Thibaud, J. -P.

Published

2003

Language

EN