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24 April 2024

» arxiv » nucl-ex/0304014

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D(18F,pa)15N reaction applied to nova gamma-ray emission
N. de Sereville ; A. Coc ; C. Angulo ; M. Assuncao ; D. Beaumel ; B. Bouzid ; S. Cherubini ; M. Couder ; P. Demaret ; F. de Oliveira Santos ; P. Figuera ; S. Fortier ; M. Gaelens ; F. Hammache ; J. Kiener ; D. Labar ; A. Lefebvre ; P. Leleux ; M. Loiselet ; A. Ninane ; S. Ouichaoui ; G. Ryckewaert ; N. Smirnova ; V. Tatischeff ; J.-P. Thibaud ;
Date:	15 Apr 2003
Journal:	Phys.Rev. C67 (2003) 052801
Subject:	nucl-ex astro-ph
Abstract:	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.
Source:	arXiv, nucl-ex/0304014
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