Joint Extraction of m_s and V_us from Hadronic Tau Decays
| dc.creator | Maltman, K. | |
| dc.creator | Wolfe, C. E. | |
| dc.date | 2007-01-04 | |
| dc.date.accessioned | 2026-07-07T11:02:32Z | |
| dc.date.available | 2026-07-07T11:02:32Z | |
| dc.description | We study the simultaneous determination of m_s and V_us from flavor-breaking hadronic tau decay sum rules using weights designed to bring under better control problems associated with the slow convergence of the relevant D=2 OPE series. Much improved stability and consistency is found as compared to the results of conventional analyses based on the ``(k,0) spectral weights''. Results for m_s are in excellent agreement with those of recent strange scalar and strange pseudoscalar sum rule analyses, as well as recent lattice analyses, while those for V_us agree within errors with the output from recent lattice-based Gamma[K_{mu 2}]/Gamma[pi_{mu 2}] and K_{\ell 3}-based analyses. Very significant error reductions are shown to be expected, especially for V_us, once the improved strange spectral data from the B factory experiments becomes available. | |
| dc.description | 12 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0701037 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0701037 | |
| dc.identifier | Phys.Lett.B650:27-32,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.04.053 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188281 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Joint Extraction of m_s and V_us from Hadronic Tau Decays | |
| dc.type | text |