Background: Atomic nuclei often exhibit collective rotational-like behavior in highly excited
states, well above the particle emission threshold. What determines the existence of …

Background: Deformed neutron-rich magnesium isotopes constitute a fascinating territory
where the interplay between collective rotation and single-particle motion is strongly affected …

In quadrupole-bound anions, an extra electron is attached at a sufficiently large quadrupole
moment of a neutral molecule, which is lacking a permanent dipole moment. The nature of …

In multipole-bound anions, the excess electron is attached by a short-range multipole
potential of a neutral molecule. Such anions are prototypical marginally bound open …

Mixing of the shell model (SM) eigenstates due to the coupling via the common decay
channel influences leads in many cases to the formation of a collective eigenstate which …

A contour deformation method (CDM) in the complex momentum plane has been
successfully extended and implemented to probe resonances in atomic and molecular …

We apply our method of complex scaling, valid for a general class of potentials, in a search
for nucleon–nucleon S-matrix poles up to 2 GeV laboratory kinetic energy. We find that the …

The theoretical and numerical developments of Chap. 3 can be directly applied to the two-
body problem which is solvable in terms of relative and center-of-mass coordinates and …