Hadronization in tau -> K K pi nu_tau decays

Details Hadronization in tau -> K K pi nu_tau decays Hadronization in tau -> K K pi nu_tau decays

2008-09-29

arxiv.org/abs/0809.4977v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 1 figure. To appear in the proceedings of 43rd Rencontres de Moriond on QCD and High Energy Interactions, La Thuile,

Scientific paper

Hadronization in tau -> K K pi nu_tau decays is driven by both vector and axial-vector currents that we study, guided by the following principles: The 1/N_C expansion -worked out at leading order, considering only the contribution of the lightest spin one resonances-, approximate chiral symmetry at low energies and the appropriate asymptotic behaviour we demand to the associated form factors. All these features are implemented in the resonance theory. Most of its couplings are determined by imposing the short-distance requirements of vector and axial-vector spectral functions within QCD. We plan to improve our prediction of the hadronic spectra using recently available experimental data.

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