Kaon weak interactions in powers of 1/Nc
High Energy Physics - Phenomenology
2017-08-23 v1 High Energy Physics - Lattice
Abstract
I review a recent analytic method for computing matrix elements of electroweak operators based on the large-Nc expansion. In particular, I give a rather detailed description of the matching of the quark Lagrangian onto the meson chiral Lagrangian governing K0-K0bar mixing. In the DeltaS=1 sector, I explain how to obtain an estimate for both epsilon'/epsilon and the DeltaI=1/2 rule. Finally, I give an example of how the method can also be useful for lattice calculations.
Cite
@article{arxiv.hep-ph/0411308,
title = {Kaon weak interactions in powers of 1/Nc},
author = {S. Peris},
journal= {arXiv preprint arXiv:hep-ph/0411308},
year = {2017}
}
Comments
19 pages. Talk delivered at the Workshop on Large-Nc QCD 2004, Trento