3 papers
hep-lat2025
The axial-vector form factor of the nucleon in a finite box
Felix Hermsen, Tobias Isken, Matthias F. M. Lutz +1
We consider the axial-vector form factor of the nucleon in a finite box. Starting from the chiral Lagrangian with nucleon and Delta-isobar degrees of freedom, we address, at the on…
hep-ph2024
How much strangeness is needed for the axial-vector form factor of the nucleon?
Felix Hermsen, Tobias Isken, David Thoma +1
We consider the axial-vector together with its induced pseudo-scalar form factor of the nucleon as computed from the chiral Lagrangian with nucleon and isobar degrees of freedom. T…
hep-ph2023
Triangle and box diagrams in coupled-channel systems from the chiral Lagrangian
Tobias Isken, Xiao-Yu Guo, Yonggoo Heo +2
We perform an analysis of triangle- and box-loop contributions to the generalized potential in the scattering of Goldstone bosons off the J^P= 0^- and 1^- charmed mesons. Particula…