New method for fitting the low-energy constants in chiral perturbation theory

Qin-He Yang, Wei Guo, Feng-Jun Ge +3

A new set of the next-to-leading order (NLO) and the next-to-next-to-leading order (NNLO) low-energy constants $L_i^r$ and $C_i^r$ in chiral perturbation theory is obtained. These…