Publication Type
Journal
Journal Name
Physical Review C
Publication Date
Page Number
044332
Volume
93
Issue
4
Abstract
We develop interactions from chiral e ective eld theory (EFT) that are tailored to the harmonic
oscillator basis. As a consequence, ultraviolet convergence with respect to the model space is
implemented by construction and infrared convergence can be achieved by enlarging the model
space for the kinetic energy. We derive useful analytical expressions for an exact and ecient
calculation of matrix elements. By tting to realistic phase shifts and deuteron data we construct
e ective interactions from chiral EFT at NLO. Many-body calculations of nuclei up to 132Sn exhibit
a fast convergence of ground-state energies and radii in feasible model spaces.
