Towards a quantitative understanding of the Delta I=1/2 rule
| dc.creator | Hernandez, P. | |
| dc.date | 2006-10-31 | |
| dc.date.accessioned | 2026-07-07T10:41:31Z | |
| dc.date.available | 2026-07-07T10:41:31Z | |
| dc.description | A recently proposed strategy to quantify the role of the charm quark mass in the $ΔI=1/2$ rule is reviewed. Results for the low-energy couplings of the $ΔS=1$ chiral effective Hamiltonian in a theory with a light charm quark (GIM limit) are obtained through a matching of three-point correlation functions computed in Chiral Perturbation Theory and in quenched lattice QCD. We observe a large $ΔI=1/2$ enhancement, which is not large enough to explain the experimental result, but suggests significant long-distance contributions to the physical $ΔI=1/2$ which are unrelated to penguin contractions or operators. | |
| dc.description | 16 pages, 8 figures, Plenary talk at Lattice 2006, to appear in Proceedings of Science PoS(LAT2006)012 | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0610129 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0610129 | |
| dc.identifier | PoSLAT2006:012,2006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181644 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Towards a quantitative understanding of the Delta I=1/2 rule | |
| dc.type | text |