epsilon'/epsilon and Chiral Dynamics
| dc.creator | Pich, A. | |
| dc.date | 2001-06-05 | |
| dc.date.accessioned | 2026-07-07T03:44:43Z | |
| dc.date.available | 2026-07-07T03:44:43Z | |
| dc.description | The long-distance contributions to $K\to 2π$ amplitudes can be pinned down, using well established Chiral Perturbation Theory techniques. The strong S--wave rescattering of the two final pions generates sizeable chiral loop corrections, which have an important impact on the direct CP violation ratio epsilon'/epsilon. Including all large logarithmic corrections, both at short and long distances, the Standard Model Prediction for this observable is found to be Re(epsilon'/epsilon) = (1.7\pm 0.9) 10^{-3}, in good agreement with the most recent experimental measurements. A better estimate of the strange quark mass could reduce the theoretical uncertainty to 30%. | |
| dc.description | 13 pages. Invited talk at the 5th International Symposium on Radiative Corrections --RADCOR2000-- (Carmel, California, September 2000) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0106057 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0106057 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40678 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | epsilon'/epsilon and Chiral Dynamics | |
| dc.type | text |