Formation of Deeply Bound 1s Pionic States in the ${}^{206}$Pb(d,${}^3$He) Reaction

Abstract

Recently, deeply bound pionic states were found experimentally in (d,${}^3$He) reactions on ${}^{208}$Pb. The observed spectrum showed an excellent agreement with the DWIA calculation and the dominant peak was attributed to the pionic 2p state contribution. We studied theoretically ${}^{206}$Pb(d,${}^3$He) reactions within the same model, and found that it is very likely to observe the pionic 1s state as an isolated peak in the ${}^{206}$Pb(d,${}^3$He) reaction with feasible energy resolution and statistics.

6 pages, Latex, Figures available upon request