On the extraction of spectral quantities with open boundary conditions

Abstract: We discuss methods to extract decay constants, meson masses and gluonic observables in the presence of open boundary conditions. The ensembles have been generated by the CLS effort and have 2+1 flavors of O(a)-improved Wilson fermions with a small twisted-mass term as proposed by L\"uscher and Palombi. We analyse the effect of the associated reweighting factors on the computation of different observables.