EPJ Web of Conferences
Volume 117, 201612th International Conference on Nucleus-Nucleus Collisions 2015
|Number of page(s)||8|
|Section||IX. Nuclear Astrophysics|
|Published online||11 May 2016|
Studying astrophysical reactions with low-energy RI beams at CRIB
1 Center for Nuclear Study (CNS), University of Tokyo, Tokio, Japan
2 INFN - Laboratori Nazionali del Sud, Catania, Italy
3 RIKEN Nishina Center, Wako, Saitama, Japan
4 Institute for Basic Science, Daejeon, Korea
5 Dipartimento di Fisica e Astronomia, Università di Catania, Catania, Italy
6 Università “Kore”, Enna, Italy
7 Department of Physics, Tohoku University, Tohoku, Japan
8 Department of Physics, Kyushu University, Kyushu, Japan
9 Department of Physics, Kyoto University, Kyoto, Japan
10 30 MeV Cyclotron Center, Tran Hung Dao Hospital, Hanoi, Vietnam
11 Institute of Physics, Vietnam Academy of Science and Technology, Hanoi, Vietnam
12 Dong Nai University, Dang Nai, Viatnam
13 Department of Physics, Yamagata University, Yamagata, Japan
14 Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, Orsay, France
15 Institut de Physique Nucleaire, Orsay, France
16 Institute for Nuclear Research (MTA-Atomiki), Debrecen, Hungary
17 Technische Universität München, München, Germany
Published online: 11 May 2016
Studies on nuclear astrophysics, nuclear structure, and other interests have been performed using the radioactive-isotope (RI) beams at the low-energy RI beam separator CRIB, operated by Center for Nuclear Study (CNS), the University of Tokyo. A typical measurement performed at CRIB is the elastic resonant scattering with the inverse kinematics. One recent experiment was on the α resonant scattering with 7Li and 7Be beams. This study is related to the astrophysical 7Li/7Be(α,γ) reactions, important at hot p-p chain and νp-process in supernovae. There have also been measurements based on other experimental methods. The first THM measurement using an RI beam has been performed at CRIB, to study the 18F(p, α)15O reaction at astrophysical energies via the three body reaction 2H(18F, α15O)n. The 18F(p, α) 15O reaction rate is crucial to understand the 511-keV γ-ray production in nova explosion phenomena, and we successfully evaluated the reaction cross section at novae temperature and below experimentally for the first time.
© Owned by the authors, published by EDP Sciences - SIF, 2016
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