Determination of V_us: recent progresses from theory
| dc.creator | Lubicz, Vittorio | |
| dc.date | 2005-05-26 | |
| dc.date.accessioned | 2026-07-07T03:54:57Z | |
| dc.date.available | 2026-07-07T03:54:57Z | |
| dc.description | Recent experimental and theoretical results on kaon semileptonic decays have significantly improved the determination of the CKM matrix element V_us. After briefly summarizing the impact of the new experimental determinations, I will concentrate in this talk on the theoretical progresses, coming in particular from lattice QCD calculations. These results lead to the estimate |V_us|=0.2250 +- 0.0021, in good agreement with the expectation based on the determination of |V_ud| and the unitarity of the CKM matrix. | |
| dc.description | Prepared for 17th Les Rencontres de Physique de la Vallee d'Aoste: Results and Perspectives in Particle Physics, La Thuile, Italy, February 27-March 5, 2005 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0505223 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0505223 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44396 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Determination of V_us: recent progresses from theory | |
| dc.type | text |