$K\to \pi \pi$ $\Delta I=3/2$ decay amplitude in the continuum limit

T. Blum, P. A. Boyle, N. H. Christ +12

We present new results for the amplitude $A_2$ for a kaon to decay into two pions with isospin $I=2$: Re$A_2=1.50(4{)}_{\mathrm{stat}}(14{)}_{\mathrm{syst}}\times 10^{-8}$ GeV; Im$A_2 =…