Deeply Bound Hole States as a Giant-Resonance-Like Phenomenon

Abstract

Giant-resonance-like peaks showing systematic variations with neutron number have been observed in the ($d, t$) reaction on the even-$A$ tin isotopes. In the reaction $^{116}\mathrm{Sn}(d, t)^{115}\mathrm{Sn}$ a separation of the ${g}_{\frac{9}{2}}$ and ${p}_{\frac{1}{2}}$, ${p}_{\frac{3}{2}}$ neutron-hole components has been obtained. A calculation of the hole spectral function shows that shell effects play an important role in determining the spreading width.