138 citations · 665 across the 35 of their papers we have counts for
35 papers
Estimating excited states contamination of form factors using heavy meson chiral perturbation theory
Oliver Bär, Alexander Broll, Rainer Sommer
Using Heavy Meson Chiral Perturbation Theory (HMChPT), the excited states contamination of the vector form factors is computed to NLO in the chiral expansion and…
-state contamination in -meson observables
Oliver Bar, Alexander Broll, Rainer Sommer
Multi-particle states with additional pions are expected to result in a non-negligible excited-state contamination in lattice simulations. We show that heavy meson chiral perturbat…
Nucleon-pion-state contamination in lattice computations of the nucleon electromagnetic form factors
Oliver Bar, Haris Colic
The nucleon-pion-state contributions to QCD two-point and three-point functions relevant for lattice calculations of the nucleon electromagnetic form factors are studied in chiral…
-states and the projection method for the nucleon axial and pseudoscalar form factors
Oliver Bar
The RQCD collaboration proposed a projection method to remove the excited state contamination in lattice OCD calculations of nuclear form factors. The effectiveness of this method…
-excited state contamination in nucleon 3-point functions using ChPT
Oliver Bar
The -state contribution to nucleon 3-pt functions involving the pseudoscalar density and the time component of the axial vector current are computed to LO in Ch…
-state contamination in lattice calculations of the nucleon axial form factors
Oliver Bar
The nucleon-pion-state contribution to QCD two-point and three-point functions used in lattice calculations of the nucleon axial form factors are studied in chiral perturbation the…