Isobaric Analogue States in Heavy Nuclei. III. Tin Isotopes

Abstract

Isobaric analogue resonances have been identified in ($p, p$) and ($p, n$) excitation functions on the target isotopes ${\mathrm{Sn}}^{112}$, ${\mathrm{Sn}}^{114}$, ${\mathrm{Sn}}^{116}$, ${\mathrm{Sn}}^{117}$, ${\mathrm{Sn}}^{118}$, ${\mathrm{Sn}}^{119}$, ${\mathrm{Sn}}^{120}$, ${\mathrm{Sn}}^{122}$, and ${\mathrm{Sn}}^{124}$. All the resonances observed on the even isotopes have been analyzed using a Coulomb-plus-single-level formula. Level separations, $l$-value determinations, spreading widths, spectroscopic factors, and Coulomb displacement energies are discussed. The spectroscopic information from ($d, p$) on the same targets are compared to the analogue results.