
Johan Bijinens
ChPT loops for the lattice: pion mass and decay constant, HVP at finite volume and nn^{}oscillations
Abstract
I present higher loop order results for several calculations in Chiral perturbation Theory. 1) Twoloop results at finite volume for hadronic vacuum polarization. 2) A threeloop calculation of the pion mass and decay constant in twoflavour ChPT. For the pion mass all needed auxiliary parameters can be determined from lattice calculations of ππscattering. 3) Chiral corrections to neutronantineutron oscillations.
LU TP 1732
