Spectroscopic factors have been extracted for proton-rich ${}^{34}\mathrm{Ar}$ and neutron-rich ${}^{46}\mathrm{Ar}$ using the ($p$, $d$) neutron transfer reaction. The experimental results show little reduction of the ground state neutron spectroscopic factor of the proton-rich nucleus ${}^{34}\mathrm{Ar}$ compared to that of ${}^{46}\mathrm{Ar}$. The results suggest that correlations, which generally reduce such spectroscopic factors, do not depend strongly on the neutron-proton asymmetry of the nucleus in this isotopic region as was reported in knockout reactions. The present results are consistent with results from systematic studies of transfer reactions but inconsistent with the trends observed in knockout reaction measurements.

The interaction of an $E/A=70$-MeV ${}^7\mathrm{Be}$ beam with a Be target was used to populate levels in ${}^6\mathrm{Be}$ following neutron knockout reactions. The three-body decay of the ground and first excited states into the $\alpha +p+p$ exit channel were detected in the High Resolution Array. Precise three-body correlations extracted from the experimental data allowed us to obtain insight into the mechanism of the three-body democratic decay. The correlation data are in good agreement with a three-cluster-model calculation and thus validate this theoretical approach over a broad energy range.

The interactions of an $E/A=70$-MeV ${}^9\mathrm{C}$ beam with a Be target was used to populate levels in Be, B, and C isotopes, which undergo decay into many-particle exit channels. The decay products were detected in the HiRA array and the level energies were identified from their invariant mass. Correlations between the decay products were examined to deduce the nature of the decays, specifically to what extent all the fragments were created in one prompt step or whether the disintegration proceeded in a sequential fashion through long-lived intermediate states. In the latter case, information on the spin of the level was also obtained. Of particular interest is the five-body decay of the ${}^8\mathrm{C}$ ground state, which was found to disintegrate in two steps of two-proton decay passing through the ${}^6\mathrm{Be}$ ${}_{g.s.}$ intermediate state. The isobaric analog of ${}^8\mathrm{C}$ ${}_{g.s.}$ in ${}^8\mathrm{B}$ was also found to undergo two-proton decay to the isobaric analog of ${}^6\mathrm{Be}$ ${}_{g.s.}$ in ${}^6\mathrm{Li}$. A 9.69-MeV state in ${}^{10}\mathrm{C}$ was found to undergo prompt four-body decay to the 2$p$ $+$ 2$\alpha$ exit channel. The two protons were found to have a strong enhancement in the diproton region and the relative energies of all four $p$-$\alpha$ pairs were consistent with the ${}^5\mathrm{Li}$ ${}_{g.s.}$ resonance.

The first conclusive evidence of a dipole resonance in ${}^{11}\mathrm{Li}$ having isoscalar character observed from inelastic scattering with a novel solid deuteron target is reported. The experiment was performed at the newly commissioned IRIS facility at TRIUMF. The results show a resonance peak at an excitation energy of $1.03\pm 0.03\mathrm{MeV}$ with a width of $0.51\pm 0.11\mathrm{MeV}$ (FWHM). The angular distribution is consistent with a dipole excitation in the distorted-wave Born approximation framework. The observed resonance energy together with shell model calculations show the first signature that the monopole tensor interaction is important in ${}^{11}\mathrm{Li}$. The first ab initio calculations in the coupled cluster framework are also presented.

It has been generally accepted that momentum-dependent potentials for neutrons and protons at energies well away from the Fermi surface cause both to behave as if their inertial masses are effectively 70% of the vacuum values. This similarity in effective masses may no longer hold in dense neutron-rich regions within neutron stars, core-collapse supernovas, and nuclear collisions. There differences in the momentum-dependent symmetry potentials may cause neutron and proton effective masses to differ significantly. We investigate this effect by measuring the energy spectra of neutrons, protons, and charged particles emitted in ${}^{112}\mathrm{Sn}+{}^{112}\mathrm{Sn}$ and ${}^{124}\mathrm{Sn}+{}^{124}\mathrm{Sn}$ collisions at $E_{\mathrm{beam}}/A=50$ and 120 MeV with precision sufficient to distinguish, in principle, between effective interactions with very different values of the neutron and proton effective masses. These data and model comparisons point the way towards future advances in our capabilities to understand the density and momentum dependence of the nuclear symmetry energy.