%0 Journal Article
%T Nonleptonic kaon decays at large N-c
%A Donini, A.
%A Hernandez, P.
%A Pena, C.
%A Romero-Lopez, F.
%J Physical Review D
%D 2016
%V 94
%N 11
%I Amer Physical Soc
%@ 2470-0010
%G English
%F Donini_etal2016
%O WOS:000390275100007
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2894), last updated on Thu, 12 Jan 2017 10:48:10 +0000
%X We study the scaling with the number of colors, N-c, of the weak amplitudes mediating kaon mixing and decay. We evaluate the amplitudes of the two relevant current-current operators on the lattice for N-c = 3-7. We conclude that the subleading 1/N-c corrections in B-k, are small, but those in the K -> pi pi amplitudes are large and fully anticoirelated in the I = 0, 2 isospin channels. We briefly comment on the implications for the Delta I = 1/2 rule.
%R 10.1103/PhysRevD.94.114511
%U http://arxiv.org/abs/1607.03262
%U https://doi.org/10.1103/PhysRevD.94.114511
%P 114511-6pp