3 papers
nucl-th2021
Two-Fermion Bound and Scattering States in a Finite Volume including QED in P-Wave and Beyond
Gianluca Stellin
Introducing a short range force coupling the spinless fermions to one unit of angular momentum in the framework of pionless EFT, we first report the two-body scattering amplitudes…
hep-lat2020
P-Wave Two-Particle Bound and Scattering States in a Finite Volume including QED
Gianluca Stellin, Ulf-G. Meißner
The mass shifts for two-fermion bound and scattering P-wave states subject to the long-range interactions due to QED in the non-relativistic regime are derived. Introducing a short…
nucl-th2018
Breaking and restoration of rotational symmetry in the low-energy spectrum of light alpha-conjugate nuclei on the lattice I: and
G. Stellin, S. Elhatisari, U. -G. Meißner
The breaking of rotational symmetry on the lattice for bound eigenstates of the two lightest alpha conjugate nuclei is explored. Moreover, a macroscopic alpha-cluster model is used…