Complete Spectroscopy of an Isobaric Analog Resonance with the(e,e′p)Reaction

Abstract

It is demonstrated by the example of the ${E}_{x}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}16.28\mathrm{MeV}$, ${J}^{\ensuremath{\pi}}{;T\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1}^{\ensuremath{-}};6$ state in ${}^{90}\mathrm{Zr}$ that a high-resolution ${}^{90}\mathrm{Zr}({e,e}^{\ensuremath{'}}p{)}^{89}\mathrm{Y}$ experiment can provide a nearly model-independent full characterization of all relevant spectroscopic properties of an isobaric analog state. The proton angular correlation data and branching ratios determine the total and partial widths into radiative and particle decay channels. A phenomenological wave function is deduced from the form factor.