TY  - JOUR
AU  - Donini, A.
AU  - Hernandez, P.
AU  - Pena, C.
AU  - Romero-Lopez, F.
PY  - 2016
DA  - 2016//
TI  - Nonleptonic kaon decays at large N-c
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 114511
EP  - 6pp
VL  - 94
IS  - 11
PB  - Amer Physical Soc
AB  - 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.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1607.03262
UR  - https://doi.org/10.1103/PhysRevD.94.114511
DO  - 10.1103/PhysRevD.94.114511
LA  - English
N1  - WOS:000390275100007
ID  - Donini_etal2016
ER  -