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Analysis of tau(-) -> K-S pi(-)nu(tau) Belle data in a chiral framework

AuthorsPortolés, Jorge
Issue DateJan-2009
CitationNuclear Physics - Section B-PS - Proceedings Supplements 186: 179-182 (2009)
AbstractThe recent measurement of the tau(-) -> K-S pi(-)nu(tau) spectrum by the Belle Collaboration provides the frame to set forth a theoretical description of the decay, which is based on the contributing vector F-+(K pi) (s)and scalar F-0(K pi)(s) form factors. We show that a good representation of data is obtained through the use of form factors calculated within resonance chiral theory and constrained by dispersion relations and short-distance QCD. Hence we obtain a determination of K* (892) parameters and the low-energy parameterization of F-+(K pi)(s).
Description14th High-Energy Physics International Conference In Quantum Chromodynamics(QCD 08). 7-12 Jul 2008, Montpellier, France
Appears in Collections:(IFIC) Comunicaciones congresos
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