
Johan Bijnens, Emil Boström, Timo A. Lähde
Twoloop Sunset Integrals at Finite Volume
Abstract
We show how to compute the twoloop sunset integrals at finite volume, for nondegenerate masses and nonzero momentum. We present results for all integrals that appear in the Chiral Perturbation Therory ($\chi$PT) calculation of the pseudoscalar meson masses and decay constants at NNLO, including the case of Partially Quenched $\chi$PT. We also provide numerical implementations of the finitevolume sunset integrals, and review the results for oneloop integrals at finite volume.
LU TP 1340
