RIB induced reactions: Studying astrophysical reactions with low-energy RI beam at CRIB

¹ Center for Nuclear Study (CNS), University of Tokyo, Wako, Japan
² School of Nuclear Science and Technology, Lanzhou University, Lanzhou, China
³ China Institute of Atomic Energy, Beijing, China
⁴ School of Physics and Astronomy, the University of Edinburgh, Edinburgh, UK
⁵ Extreme Light Infrastructure – Nuclear Physics, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH), Bucharest-Măgurele, Romania
⁶ Istituto Nazionale di Fisica Nucleare - Laboratori Nazionali del Sud, Catania, Italy
⁷ Department of Physics and Astronomy, University of Catania, Catania, Italy
⁸ Centro Siciliano di Fisica Nucleare e Struttura della Materia, CSFNSM, Catania, Italy
⁹ Department of Physics, University of Jyväskylä, Jyväskylä, Finland
¹⁰ Department of Physics, Sungkyunkwan University, Suwon, Korea
¹¹ Center for Exotic Nuclear Studies, Institute for Basic Science, Daejeon, Korea
¹² The Institute of Physical and Chemical Research (RIKEN), Wako, Japan
¹³ Faculty of Engineering and Architecture, Kore University of Enna, Enna, Italy
¹⁴ Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
¹⁵ Research Center for Nuclear Physics (RCNP), Osaka University, Osaka, Japan
¹⁶ Department of Physics, Tohoku University, Sendai, Japan
¹⁷ Department of Physics, Ewha Womans University, Seoul, Korea
¹⁸ Korea University, Seoul, Korea
¹⁹ Institute for Nuclear Research (Atomki), Debrecen, Hungary
²⁰ Department of Physics, University of Naples Federico II, Naples, Italy
²¹ Istituto Nazionale di Fisica Nucleare - Section of Naples, Naples, Italy
²² Rare Isotope Science Project, Institute for Basic Science, Daejeon, Korea
²³ Istituto Nazionale di Fisica Nucleare - Section of Perugia, Perugia, Italy
²⁴ Department of Physics and Geology, University of Perugia, Perugia, Italy
²⁵ Faculty of Physics, VNU University of Science, Hanoi, Vietnam
²⁶ School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, China
²⁷ School of Physics and Astronomy, Monash University, Victoria, Australia
²⁸ The Joint Institute for Nuclear Astrophysics, Michigan State University, East Lansing, MI, USA
²⁹ Department of Physics and Astronomy, Michigan State University, East Lansing, MI, USA
³⁰ College of Nuclear Science and Technology, Beijing Normal University, Beijing, China
³¹ Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-Sen University, Zhuhai, China
³² Department of Physics & Astronomy, McMaster University, Ontario, Canada
³² Technische Universität Darmstadt, Darmstadt, Germany
³³ Département de Physique, Université Libre de Bruxelles, Bruxelles, Belgium

^* e-mail: yamag@cns.s.u-tokyo.ac.jp

Published online: 3 February 2023

Abstract

Astrophysical reactions involving radioactive isotopes (RI) often play an important role in high-temperature stellar environments. The experimental studies on the reaction rates for those are still limited mainly due to the technical difficulties in producing high-quality RI beams. A direct measurement of those reactions would be still challenging in many cases, however, we can make a reliable evaluation of the reaction rates by an indirect method or by studying the resonance prorerties. Here we ntroduce recent examples of experimental studies on such RI-involving astrophysical reactions, performed at Center for Nuclear Study, the University of Tokyo, using the low-energy RI beam separator CRIB. One is for the neutron-induced destruction reactions of ⁷Be in the Big-Bang nucleosynthesis, and the other is the study on the ²²Mg(α, p) reaction relevant in X-ray bursts, which was performed with the resonant scattering method from the inverse reaction channel.