2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/193108We calculate the volume dependence of the ground-state energy of n identical bosons with short-range repulsive interactions in a periodic spatial volume of side L, up to and including terms of order 1/L^6. With this result, Lattice QCD calculations of the ground-state energies of three or more pions will allow for a systematic extraction of the three-pion interaction at this order in the volume expansion.High Energy Physics - LatticeHigh Energy Physics - PhenomenologyNuclear Theorytext