Isomer beam elastic scattering: 26mAl(p, p) for astrophysics
1 School of Physics & Astronomy, the University of Edinburgh, Edinburgh, United Kingdom
2 Center for Nuclear Study, the University of Tokyo, Wako, Japan
3 Department of Physics, Sungkyunkwan University, Suwon, Korea
4 Department of Physics & Astronomy, Hamilton, Ontario, Canada
5 RIKEN Nishina Center, Wako, Japan
6 Department of Physics, Tohoku University, Sendai, Japan
7 Department of Physics, Ewha Womans University, Seoul, Korea
8 Institute of Particle and Nuclear Studies, KEK, Japan
9 Wako Nuclear Science Center, KEK, Wako, Japan
10 Department of Physics, Kyushu University, Fukuoka, Japan
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Published online: 30 December 2017
The advent of radioactive ground-state beams some three decades ago ultimately sparked a revolution in our understanding of nuclear physics. However, studies with radioactive isomer beams are sparse and have often required sophisticated apparatuses coupled with the technologies of ground-state beams due to typical mass differences on the order of hundreds of keV and vastly different lifetimes for isomers. We present an application of a isomeric beam of 26mAl to one of the most famous observables in nuclear astrophysics: galactic 26Al. The characteristic decay of 26Al in the Galaxy was the first such specific radioactivity to be observed originating from outside the Earth some four decades ago. We present a newly-developed, novel technique to probe the structure of low-spin states in 27Si. Using the Center for Nuclear Study low-energy radioisotope beam separator (CRIB), we report on the measurement of 26mAl proton resonant elastic scattering conducted with a thick target in inverse kinematics. The preliminary results of this on-going study are presented.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).