TY - JOUR AU - Nebreda Manjón, Jenifer AU - Peláez Sagredo, José Ramón AU - Ríos, G. PY - 2013 DO - 10.1103/PhysRevD.88.054001 SN - 1550-7998 UR - https://hdl.handle.net/20.500.14352/34933 T2 - Physical review D AB - We determine the values of the one- and two-loop low energy constants appearing in the SU(2) Chiral Perturbation Theory calculation of pion-pion scattering. For this we use a recent and precise sum rule determination of some scattering lengths and... LA - eng PB - Amer Physical Soc KW - Isospin breaking KW - Partial waves KW - Form-factors KW - Sum-rules KW - Constraints KW - Amplitudes KW - Qcd KW - Lagrangians KW - Equation KW - Symmetry TI - Determination of SU(2) chiral perturbation theory low energy constants from a precise description of pion-pion scattering threshold parameters TY - journal article VL - 88 ER -