2015/08/28 by Johan Bijnens, Thomas Rössler · 3 citations
Physics and Astronomy · #Chiral perturbation theory #Finite volume method #High-Energy Particle Collisions Research #Lattice QCD #Meson #Particle physics theoretical and experimental studies #Pseudoscalar #Pseudoscalar meson #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #hep-lat #hep-ph
paper · pdf · doi:10.1007/jhep11(2015)097
published in Journal of High Energy Physics 2015(11) (Springer Nature) · 29 pages
arxiv created 2015/08/28 · openalex publication_date 2015/11/01 · arxiv updated 2016/01/20 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present a calculation of the finite volume corrections to meson masses and decay constants in three flavour Partially Quenched Chiral Perturbation Theory (PQChPT) through two-loop order in the chiral expansion for the flavour-charged (or off-diagonal) pseudoscalar mesons. The analytical results are obtained for three sea quark flavours with one, two or three different masses. We reproduce the known infinite volume results and the finite volume results in the unquenched case. The calculation has been performed using the supersymmetric formulation of PQChPT as well as with a quark flow technique. Partial analytical results can be found in the appendices. Some examples of cases relevant to lattice QCD are studied numerically. Numerical programs for all results are available as part of the CHIRON package.