γrays from muon capture in I, Au, and Bi

Abstract

A significant improvement has been made in the identification of $\ensuremath{\gamma}$ rays from muon capture in I, Au, and Bi, all monisotopic elements. The (${\ensuremath{\mu}}^{\ensuremath{-}},\ensuremath{\nu}n$) reaction was clearly observed in all nuclei, but the levels excited do not correlate well with the spectroscopic factors from the ($d,^{3}\mathrm{He}$) reaction. Some (${\ensuremath{\mu}}^{\ensuremath{-}},\ensuremath{\nu}2n$), (${\ensuremath{\mu}}^{\ensuremath{-}},\ensuremath{\nu}3n$), (${\ensuremath{\mu}}^{\ensuremath{-}},\ensuremath{\nu}4n$), (${\ensuremath{\mu}}^{\ensuremath{-}},\ensuremath{\nu}5n$) and other reactions have been observed at a lower yield. The muonic x-ray cascades have also been studied in detail.