Andreas Ekström

collaborators

3 papers

nucl-th2024

Inference of the low-energy constants in $I^$ -full chiral effective field theory including a correlated truncation error

Isak Svensson, Andreas EkstrÃ¶m, Christian ForssÃ©n

We sample the posterior probability distributions of the low-energy constants (LECs) in $I^$ -full chiral effective field theory ( $I ¨ $ EFT) up to third order. We use eigenvector cont…

nucl-th2024

Eigenvector Continuation and Projection-Based Emulators

Thomas Duguet, Andreas EkstrÃ¶m, Richard J. Furnstahl +2

Eigenvector continuation is a computational method for parametric eigenvalue problems that uses subspace projection with a basis derived from eigenvector snapshots from different p…

nucl-th2024

Perturbative computations of neutron-proton scattering observables using renormalization-group invariant $I ¨ $ EFT up to N $^{3}$ LO

We predict neutron-proton scattering cross-sections and polarization observables up to next-to-next-to-next-to leading order in a renormalization-group invariant description of the…

Inference of the low-energy constants in I^-full chiral effective field theory including a correlated truncation error

Eigenvector Continuation and Projection-Based Emulators

Perturbative computations of neutron-proton scattering observables using renormalization-group invariant I¨EFT up to N3LO

Inference of the low-energy constants in $I^$ -full chiral effective field theory including a correlated truncation error

Perturbative computations of neutron-proton scattering observables using renormalization-group invariant $I ¨ $ EFT up to N $^{3}$ LO