%0 Journal Article
%T The three-pion K-matrix at NLO in ChPT
%A Baeza-Ballesteros, J.
%A Bijnens, J.
%A Husek, T.
%A Romero-Lopez, F.
%A Sharpe, S. R.
%A Sjo, M.
%J Journal of High Energy Physics
%D 2024
%V 03
%N 3
%I Springer
%@ 1029-8479
%G English
%F Baeza-Ballesteros_etal2024
%O WOS:001178200000005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6006), last updated on Tue, 02 Apr 2024 15:18:21 +0000
%X The three-particle K-matrix, K-df,K-3, is a scheme-dependent quantity that parametrizes short-range three-particle interactions in the relativistic-field-theory three-particle finite-volume formalism. In this work, we compute its value for systems of three pions in all isospin channels through next-to-leading order in Chiral Perturbation Theory, generalizing previous work done at maximum isospin. We obtain analytic expressions through quadratic order (or cubic order, in the case of zero isospin) in the expansion about the three-pion threshold.
%K Chiral Lagrangian
%K Hadronic Spectroscopy
%K Structure and Interactions
%K Lattice QCD
%R 10.1007/JHEP03(2024)048
%U https://arxiv.org/abs/2401.14293
%U https://doi.org/10.1007/JHEP03(2024)048
%P 048-43pp