Determination of alpha spectroscopic factors for unbound 17O states

De Séréville, Nicolas; Meyer, Anne; Hammache, Faïrouz; Laird, Alison M.; Pignatari, Marco

Abstract

© The Authors, published by EDP Sciences, 2017. It has been recently suggested that hydrogen ingestion into the helium shell of massive stars could lead to high 13 C and 15 N excesses when the blast of a core collapse supernova (ccSN) passes through its helium shell. This prediction questions the origin of extremely high 13 C and 15 N abundances observed in rare presolar SiC grains which is usually attributed to classical novae. In this context the 13 N(α,p) 16 O reaction plays an important role since it is in competition with 13 N β + -decay to 13 C. As a first step to the determination of the 13 N(α,p) 16 O reaction rate, we present a study aiming at the determination of alpha spectroscopic factors of 17 O states which are the analog ones to those in 17 F, the compound nucleus of the 13 N(α,p) 16 O reaction.

Citation

De Séréville, N., Meyer, A., Hammache, F., Laird, A. M., & Pignatari, M. (2017). Determination of alpha spectroscopic factors for unbound 17O states. EPJ Web of Conferences, 165, 01022. https://doi.org/10.1051/epjconf/201716501022

• Journal Article Type: Article
• Acceptance Date: Dec 30, 2017
• Online Publication Date: Dec 30, 2017
• Publication Date: Dec 30, 2017
• Deposit Date: Jun 28, 2018
• Publicly Available Date: Jul 3, 2018
• Journal: EPJ Web of Conferences
• Print ISSN: 2100-014X
• Publisher: EDP Sciences
• Peer Reviewed: Peer Reviewed
• Volume: 165
• Article Number: 01022
• Pages: 01022
• ISBN: 9782759890309
• DOI: https://doi.org/10.1051/epjconf/201716501022
• Public URL: https://hull-repository.worktribe.com/output/745948
• Publisher URL: https://www.epj-conferences.org/articles/epjconf/abs/2017/34/epjconf_npa82017_01022/epjconf_npa82017_01022.html
• Contract Date: Jun 28, 2018