Formation of deeply bound pionic atoms in Sn isotopes
1 Department of Physics, Nara Women’s University, Nara 630-8506, Japan
2 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan
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We study the formation of deeply bound pionic atoms in the (d,3He) reactions theoretically and show the energy spectra of the emitted 3He at finite angles. We find that the different combinations of the pion-bound and neutron-hole states dominate the formation spectra at different scattering angles because of the matching condition of the reaction. We conclude that the observation of the (d,3He) reaction at finite angles will provide the systematic information of the pionic bound states in each nucleus, and it will help to develop the study of the pion properties and the partial restoration of chiral symmetry in nuclei.
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