Abstract

Measurements of ($^{3}\mathrm{He}$,$d$) reactions can provide information on the proton widths of states that play a role in astrophysically important ($p,\ensuremath{\gamma}$) reactions. We report on the first study of the ($^{3}\mathrm{He}$,$d$) reaction in inverse kinematics with a $^{56}\mathrm{Ni}$$ ({T}_{1/2}=6.1 \mathrm{d})$ ion beam. The $Q$-value resolution of $~$ keV achieved in this experiment was sufficient to separate the transitions populating the ground state and the $1/{2}^{\ensuremath{-}}\text{\ensuremath{-}}5/{2}^{\ensuremath{-}}$ doublet at ${E}_{x}~1.1$ MeV in $^{57}\mathrm{Cu}$. Prospects for similar ($^{3}\mathrm{He}$,$d$) experiments with improved energy resolution are also discussed.

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