The Joint Extraction of m_s and V_us From Hadronic Tau Decay Data

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dc.creatorMaltman, K.
dc.creatorWolfe, C. E.
dc.date2006-11-13
dc.date.accessioned2026-07-07T11:02:11Z
dc.date.available2026-07-07T11:02:11Z
dc.descriptionWe discuss the simultaneous determination of m_s and V_us from flavor-breaking hadronic tau decay sum rules, focussing on weight choices designed to better control problems associated with the slow convergence of the relevant integrated D=2 OPE series. The results are found to display improved stability and consistency relative to those of conventional analyses based on the ``(k,0) spectral weights''. The results for m_s agree well with those of recent strange scalar sum rule and strange pseudoscalar sum rule and lattice analyses. Results for V_us agree within errors with those of lattice-input-based K_{ell 3} and Gamma [K_{mu 2}]/Γ[pi_{mu 2}] analyses. Very significant error reductions are shown to be expected, especially for V_us, once improved strange spectral data from the B factory experiments becomes available.
dc.description8 pages, 5 figures, prepared for the Proceedings of the 9th International Workshop on Tau Lepton Physics (Tau'06), Pisa, Italy
dc.identifierhttps://arxiv.org/abs/hep-ph/0611180
dc.identifierhttp://arxiv.org/abs/hep-ph/0611180
dc.identifierNucl.Phys.Proc.Suppl.169:90-97,2007
dc.identifierdoi:10.1016/j.nuclphysbps.2007.02.054
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188177
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe Joint Extraction of m_s and V_us From Hadronic Tau Decay Data
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