A novel route to V_us
| dc.creator | Jamin, Matthias | |
| dc.date | 2003-09-12 | |
| dc.date.accessioned | 2026-07-07T03:50:38Z | |
| dc.date.available | 2026-07-07T03:50:38Z | |
| dc.description | Already in the past, hadronic tau decays have served as an interesting source to obtain information on the parameters of the Standard Model, like the strong coupling alpha_s or the strange quark mass. Below it will be shown that the approach to obtain the strange mass from the hadronic tau-decay width can be turned into a determination of the CKM matrix element V_us, once the strange mass is used as an input from other sources. At present, we obtain V_us = 0.2179 +- 0.0045, where the error is completely dominated by the experimental uncertainty, and can be improved through an improved measurement of the hadronic tau-decay rate into strange particles R_tau,S. | |
| dc.description | 4 pages, 1 figure, contribution to CKM03, Durham, April 2003 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0309147 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0309147 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42839 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A novel route to V_us | |
| dc.type | text |