2-13 Stellar Reaction Rate of the 14O(α, p)17F

• 作者: A. Chen D. Irvine D. Kahl H. S. Jung H. Yamaguchi He Jianjun Hu Jun J. Y. Moon Ma Peng S. Kubono Su Jun T. Hashimoto T. Nakao T. Teranishi Wang Hongwei Xu Shiwei Y. Wakabayashi
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 关键词: STELLAR REACTION RATE
• 年，卷（期）: 2014,（1）
• 页码范围: 45-46
• 页数: 2页
• 分类号: O4

摘要

Proton resonant states in 18Ne have been investigated by the resonant scattering of 17F+p with a 17F beambombarding a thick H2 gas target. Several resonances have been observed. In particular, the astrophysically crucialstate 6.15 MeV was observed as a spin-parity assignment of 1?? with high statistics. The groove-like structureobserved in this work is completely different with previous peak one[1]. The confirmation of 1?? on a firm groundclarified this significant discrepancy. In addition, a new state was observed at Ex = 6.85 MeV with a tentativespin assignment of 0, which could be the mirror state of 6.88 MeV, 0?? in 18O, or a bandhead state (0+) of thesix-particle four-hole (6p-4h) band[2,3]. The resonant parameters have been determined by an R-matrix analysis ofthe excitation functions.