Feshbach resonances are the essential tool to control the interaction between atoms in
ultracold quantum gases. They have found numerous experimental applications, opening up …

The theoretical status on universal aspects of weakly-bound neutron-rich light nuclei are
reviewed, considering few-body approaches. We focus the review on the low-energy …

Abstract Systems of three interacting particles are notorious for their complex physical
behaviour. A landmark theoretical result in few-body quantum physics is Efimov's prediction …

Ultracold atomic gases have developed into prime systems for experimental studies of
Efimov three-body physics and related few-body phenomena, which occur in the universal …

The Efimov phenomenon manifests itself as an emergent discrete scaling symmetry in the
quantum three-body problem. In the unitarity limit, it leads to an infinite tower of three-body …

We investigate the appearance of resonances in three-body systems using pionless
effective field theory at leading order with two complementary methods. The Faddeev …

The recently extracted matter radius of carbon isotope 22C allows us to estimate the mean-
square distance of a halo neutron with respect to the center-of-mass of this nucleus. By …

Abstract “Resummed-Range Effective Field Theory” is a consistent nonrelativistic Effective
Field Theory of contact interactions with large scattering length a and an effective range r 0 …

The influence of a two-hadron threshold is studied for the hadron mass scaling with respect
to some quantum chromodynamics parameters. A quantum mechanical model is introduced …

The subtracted kernel approach is shown to be a powerful method to be implemented
recursively in scattering equations with regular plus point-like interactions. The advantages …