Study of 19Ne using the 15O + alpha experiment

5 Jun 2018, 17:12
18m
Kunibiki Messe (Matsue)

Kunibiki Messe

Matsue

Oral contribution Session 8

Speaker

Ms Dahee Kim (Department of Physics, Ewha Womans University, Seoul, Korea)

Description

Classical novae are one of the most energetic stellar events in the Universe. In this site, intense γ-rays due to the beta decay of 18F produced 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 to the novae calculation model[2,3]. For this reason, many experiments and theoretical works have been reported on the resonances of 19Ne near and above the proton threshold, which can contribute to the reaction rate. However, many relevant parameters are still not measured.[4,5] We performed alpha elastic scattering experiment with the radioactive 15O beam for investigating the resonance parameters near the proton threshold using the thick target method at CRIB of the Center for Nuclear Study. The excitation function of 19Ne was obtained between Ex=3.53 MeV and Ex=11.13 MeV. The experimental details and results on the structure of 19Ne will be presented.

[1] M. Hernanz et al., Astrophys. J. 526, L97 (1999).
[2] S. Utku et al., Phys. Rev. C 58, 1354(E) (1998).
[3] A. Coc et al.,Astron. Astrophys. 357, 561(2000).
[4] A. St. J. Murphy et al., Phys. Rev. C 79, 058801 (2009).
[5] A. M. Laird et al., Phys. Rev. Lett. 110, 032502 (2013).

Primary author

Ms Dahee Kim (Department of Physics, Ewha Womans University, Seoul, Korea)

Co-authors

Prof. A. A. Chen (Department of Physics and Astronomy, McMaster University, Hamilton, Canada) Dr A. Kim (Department of Physics, Ewha Womans University, Seoul, Korea) Dr D. Kahl (School of Physics and Astronomy, University of Edinburgh, Edinburgh, United Kingdom) Ms E. J. Lee (Department of Physics, SungKyunKwan University, Suwon, Korea) Ms E. K. Lee (CUP, Institute of Basic Science, Daejeon, Korea) Ms G. W. Kim (Department of Physics, Ewha Womans University, Seoul, Korea) Prof. H. Yamaguchi (Center for Nuclear Study, University of Tokyo, Wako, Japan) Mr J. H. Lee (Department of Physics, SungKyunKwan University, Suwon, Korea) Dr J. Y. Moon (RISP, Institute of Basic Science, Daejeon, Korea) Mr K. Abe (Center for Nuclear Study, University of Tokyo, Wako, Japan) Prof. K. Y. Chae (Department of Physics, SungKyunKwan University, Suwon, Korea) Prof. Kevin Insik Hahn (Department of Science Education, Ewha Womans University, Seoul, Korea) Mr M. S. Gwak (Department of Physics, SungKyunKwan University, Suwon, Korea) Prof. N. Imai (Center for Nuclear Study, University of Tokyo, Wako, Japan) Mr N. Kitamura (Center for Nuclear Study, University of Tokyo, Wako, Japan) Dr O. Beliuskina (Center for Nuclear Study, University of Tokyo, Wako, Japan) Prof. S. H. Choi (Department of Physics and Astronomy, Seoul National University, Seoul, Korea) Mr S. H. Hae (Department of Physics and Astronomy, Seoul National University, Seoul, Korea) Dr S. Hayakawa (Center for Nuclear Study, University of Tokyo, Wako, Japan) Prof. S. Kubono (RIKEN, Nishina Center, Wako, Japan) Ms S. M. Cha (Department of Physics, SungKyunKwan University, Suwon, Korea) Prof. S. W. Hong (Department of Physics, SungKyunKwan University, Suwon, Korea) Ms S. Y. Park (Department of Physics, Ewha Womans University, Seoul, Korea) Dr V. Panin (RIKEN, Nishina Center, Wako, Japan) Mr Y. Sakaguchi (Center for Nuclear Study, University of Tokyo, Wako, Japan) Dr Y. Wakabayashi (RIKEN, Nishina Center, Wako, Japan)

Presentation Materials