Abstract
We show how to compute the two-loop sunset integrals at finite volume, for non-degenerate masses and non-zero momentum. We present results for all integrals that appear in the Chiral Perturbation Theory (χPT) calculation of the pseudoscalar meson masses and decay constants at next-to-next-to-leading order, including the case of Partially Quenched χPT. We also provide numerical implementations of the finite-volume sunset integrals, and review the results for one-loop integrals at finite volume.
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ArXiv ePrint: 1311.3531
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Bijnens, J., Boström, E. & Lähde, T.A. Two-loop sunset integrals at finite volume. J. High Energ. Phys. 2014, 19 (2014). https://doi.org/10.1007/JHEP01(2014)019
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DOI: https://doi.org/10.1007/JHEP01(2014)019