Speaker
Dr
R. Molina
(UCM)
Description
Recent lattice data on smaller strange quark mass than the physical one allow us to study the strangeness dependence of connected observables as pseudoscalar decay constants and ($I=J=1$) -$\pi\pi$ -phase shifts for the first time. Moreover, we perform a global analysis on TrM $=c$ and $m_s=c$ trajectories, which guide new predictions on trajectories like $m_u=c$. Unitarized one-loop Chiral Perturbation Theory (or the so-called Inverse Amplitude Method),
is used to determine the quark mass dependence of these observables. As a result, precise values of the Low-Energy-Constants are given.
Primary author
Dr
R. Molina
(UCM)
Co-author
Dr
Jacobo Ruiz de Elvira
(ITP)
