We review the structure of Roy–Steiner equations for pion–nucleon scattering, the solution
for the partial waves of the t-channel process π π→ N ̄ N, as well as the high-accuracy …

We highlight the progress, current status, and open challenges of QCD-driven physics, in
theory and in experiment. We discuss how the strong interaction is intimately connected to a …

We present a determination of the pion-nucleon (π N) σ term σ π N based on the Cheng-
Dashen low-energy theorem (LET), taking advantage of the recent high-precision data from …

The cross section for coherent elastic neutrino-nucleus scattering (CE ν NS) depends on the
response of the target nucleus to the external current, in the Standard Model (SM) mediated …

We match the results for the subthreshold parameters of pion-nucleon scattering obtained
from a solution of Roy-Steiner equations to chiral perturbation theory up to next-to-next-to …

We present an analysis of the pion-nucleon σ-term σ π N using six ensembles with 2+ 1+ 1-
flavor highly improved staggered quark action generated by the MILC Collaboration. The …

We show how to avoid unnecessary and uncontrolled assumptions usually made in the
literature about soft SU (3) flavor symmetry breaking in determining the two-flavor nucleon …

We present an extraction of the pion-nucleon ($\pi N $) scattering lengths from low-energy
$\pi N $ scattering, by fitting a representation based on Roy–Steiner equations to the low …

Elastic nucleon-pion scattering amplitudes are computed using lattice QCD on a single
ensemble of gauge field configurations with N f= 2+ 1 dynamical quark flavors and m π= 200 …

Searches for invisible Higgs decays at the Large Hadron Collider constrain dark matter
Higgs-portal models, where dark matter interacts with the standard model fields via the …