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arXiv · 1710.04840

ChPT loops for the lattice: pion mass and decay constant, HVP at finite volume and $n\bar n$-oscillations

Johan Bijnens
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Abstract

I present higher loop order results for several calculations in Chiral perturbation Theory. 1) Two-loop results at finite volume for hadronic vacuum polarization. 2) A three-loop calculation of the pion mass and decay constant in two-flavour ChPT. For the pion mass all needed auxiliary parameters can be determined from lattice calculations of $ππ$-scattering. 3) Chiral corrections to neutron-anti-neutron oscillations.

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Johan Bijnens. 2017-10-13. ChPT loops for the lattice: pion mass and decay constant, HVP at finite volume and $n\bar n$-oscillations. https://doi.org/10.1051/epjconf%2F201817506011

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