The K -> pi vector form factor at zero momentum transfer on the lattice

D. Becirevic, G. Isidori, V. Lubicz +5

We present a quenched lattice study of the form factors $f_{+}(q^2)$ and $f_0(q^2)$ of the matrix elements $<\pi |\bar{s}{\gamma }_{\mu }u|K>$. We focus on the second-order SU(3)-breaking quant…