22-27 March 2015
Hotel do Bosque
Brazil/East timezone

Hadronic tau decays in resonance chiral theory

23 Mar 2015, 19:00
Hotel do Bosque

Hotel do Bosque

Rodovia Mário Covas (Rio-Santos) BR - 101 Sul, Km 533, Angra dos Reis, RJ, Brazil
Oral presentation Strong and electroweak interactions in the standard model Strong and electroweak interactions in the standard model


Prof. Daniel Gomez Dumm (UNLP)


Tau decays are analyzed within the framework of resonance chiral theory. This is an extension of chiral perturbation theory in which resonances are incorporated as dynamical states in the Lagrangian, making use of both chiral symmetry and large N_C considerations. It is seen that after imposing asymptotic QCD constraints, a few effective coupling constants need to be fitted from experiment in order to describe the spectral functions for various decay channels.

Primary author

Prof. Daniel Gomez Dumm (UNLP)


Prof. Jorge Portoles (Instituto de Fisica Corpuscular) Prof. Pablo Roig (IFAE)

Presentation Materials