TY  - JOUR
AU  - Baeza-Ballesteros, J.
AU  - Bijnens, J.
AU  - Husek, T.
AU  - Romero-Lopez, F.
AU  - Sharpe, S. R.
AU  - Sjo, M.
PY  - 2024
DA  - 2024//
TI  - The three-pion K-matrix at NLO in ChPT
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 048
EP  - 43pp
VL  - 03
IS  - 3
PB  - Springer
KW  - Chiral Lagrangian
KW  - Hadronic Spectroscopy
KW  - Structure and Interactions
KW  - Lattice QCD
AB  - 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.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2401.14293
UR  - https://doi.org/10.1007/JHEP03(2024)048
DO  - 10.1007/JHEP03(2024)048
LA  - English
N1  - WOS:001178200000005
ID  - Baeza-Ballesteros_etal2024
ER  -