Study of the <sup>19</sup>Ne structure using<sup></sup> the <sup>15</sup>O+α experiment
ORAL
Abstract
We performed alpha elastic scattering experiment with a radioactive 15O beam for investigating the structure of 19Ne near the proton threshold. In classical novae, the intense γ-rays due to the beta decay of 18F are emitted by the HCNO cycle. The amount of 18F is determined by two destructive channels 18F(p,α)15O and 18F(p,γ)19Ne [1]. The reaction rates of the two destructive channels affect the novae calculation model [2]. For this reason, many experiments and theoretical works have been reported on the resonances of 19Ne near and above the proton threshold. However, many relevant parameters are still not measured. The experiment was performed using the CRIB facility at the Center for Nuclear Study using the thick target method. The excitation function of 19Ne was obtained between Ex=3.53 MeV and Ex=11.13 MeV. We also investigated the alpha cluster structure of 19Ne and compared with the recent theoretical study [3]. The experimental details and results of our study will be discussed.
[1] M. Hernanz et al., Astrophys. J. 526, L97 (1999).
[2] A. Coc et al., Astron. Astrophys. 357, 561(2000).
[3] R. Otani et al., Phys. Rev. C 90, 034316 (2014).*This work was supported by the NRF grant funded by the Korean Government (Grant No. NRF-2017R1A2B2012382).
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Presenters
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K. I. Hahn
- Ewha Woman's Univ