AUTHOR=Cha S. M. , Chae K. Y. , Abe K. , Bae S. , Binh D. N. , Choi S. H. , Duy N. N. , Ge Z. , Hahn K. I. , Hayakawa S. , Hong B. , Iwasa N. , Kahl D. , Khiem L. H. , Kim A. , Kim D. , Kim E. J. , Kim G. W. , Kim M. J. , Kwak K. , Kwag M. S. , Lee E. J. , Lim S. I. , Moon B. , Moon J. Y. , Park S. Y. , Phong V. H. , Shimizu H. , Yamaguchi H. , Yang L. 

TITLE=Investigation of 22Mg levels via resonant scattering of 18Ne + α

JOURNAL=Frontiers in Physics

VOLUME=11

YEAR=2023

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2023.1163299

DOI=10.3389/fphy.2023.1163299

ISSN=2296-424X

ABSTRACT=<p>The <italic>α</italic> resonant scattering on <sup>18</sup>Ne was measured in inverse kinematics to understand the <italic>α</italic>-clustering of proton-rich <sup>22</sup>Mg nucleus, performed at the CNS Radio-Isotope Beam Separator (CRIB) of Center for Nuclear Study, University of Tokyo, located at the RIBF of RIKEN Nishina Center. The excitation function of <sup>22</sup>Mg was obtained for the excitation energies of 10–16 MeV by adopting the thick-target method. Several resonances were evident in the present work, which implies the existence of energy levels with large <italic>α</italic> widths. Since energy levels were not clearly observed at the astrophysically important energy range, upper limits on the <sup>18</sup>Ne (<italic>α</italic>, <italic>α</italic>)<sup>18</sup>Ne cross section were set. The astrophysical impact was also investigated by estimating the <sup>18</sup>Ne (<italic>α</italic>, <italic>p</italic>)<sup>21</sup>Na cross section.</p>