The ISOLDE Solenoidal Spectrometer (ISS) specialises in the study of direct reactions in inverse kinematics. The ISS was fully commissioned in 2021 with a new silicon detector array and has since undergone three successful physics campaigns. This talk will give an overview of the technical capabilities of ISS, as well as present recent measurements taken using the device. These focus on the...
Direct reactions are fundamental tools to investigate the structure of exotic nuclei. Studies of nuclei far away from stability are usually performed with secondary radioactive beams, that suffer from low intensities and need to be compensated with thick targets and high efficient detection systems to increase luminosity. Active targets are invaluable devices that, among other important...
The exponential decay of unstable states is one of the most pervasive and most studied phenomena in microscopic physics, yet its quantum-mechanical theory remains obscure in many ways. The exponential decay is not a trivial consequence of quantum dynamics; rather, it emerges from a complex equilibrium involving a resonant state with a decaying amplitude and a rotating phase, balanced by the...
Neutron-rich nuclei provide important insights to nuclear forces and to the nuclear equation of state. Advances in ab initio methods combined with new opportunities with rare isotope beams enable unique explorations of their properties based on nuclear forces applicable over the entire nuclear chart. In this Letter, we develop novel chiral low-resolution interactions that accurately describe...
The direct reaction theory widely used to study single-particle spectroscopic strength in nucleon transfer experiments is based on a Hamiltonian with two-nucleon interactions only. We point out that in reactions where three-body effects are important, for example, such as $(d,p)$ and $(p,2p)$, an additional three-body force arises due to three-nucleon ($3N$) interaction between nucleons...
