[Theory-seminars] Seminar tomorrow [1pm, L102]

[Miguel Albaladejo]

Dear all,

below you can find a reminder on tomorrow's seminar.

Best regards,
Miguel

Date and time: Monday, Oct 14, 1:00PM
Room: L102
Speaker: Sergi Gonzalez-Solis (Indiana U.)
Title: Light mesons from tau decays

Abstract:
The tau is the only lepton massive enough to decay into hadrons. Its semileptonic decays provide a privileged scenario to study low-energy effects of the strong interactions under rather clean conditions. Such advantageous framework is used to improve our understanding of the hadronization of QCD currents, to study meson form factors and to extract the physical parameters of the intermediate resonances produced in the decay. In this talk, we will review the status of the hadronic tau decay modes into two mesons and study the higher-multiplicity decay $\tau^{-}\to(3\pi)^{-}\nu_{\tau}$. Our theoretical description of the meson from factors that come up into play is based on Chiral Perturbation Theory supplemented by constraints posed by analyticity and unitarity through dispersion relations. The fantastic possibilities offered by the Belle-II experiment to study tau physics and low multiplicity final states with high precision make these studies of timely interest.

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