Publication at Faculty of Mathematics and Physics |
2020
Abstract
The decay constant of the ii-meson in the framework of 'resummed' chiral perturbation theory is discussed. A theoretical prediction is compared to the available determinations.
Compatibility of these determinations with the latest fits of the S U(3) low energy coupling constants is investigated. Preliminary results for the obtained constraints on the low energy coupling constants L-5(r) and L-4(r), using Bayesian statistical approach, are presented.