2 papers
nucl-th2025
Centroids of nuclear shell-model Hamiltonians, with optimization of energy-based truncation schemes
Calvin W. Johnson, Austin Keller
The configuration-interaction shell model is an effective and widely-used approach to the nuclear many-body problem, whose main drawback is the exponential growth of the basis dime…
nucl-th2024
Scattering phase shifts from overlap relations in the -matrix method
Calvin W. Johnson, Bui Minh Loc, Austin Keller +1
The scattering problem can be implemented in a square-integrable basis via the so-called -matrix method. While methods to compute the phase shift in the -matrix approach are…