Sergi Gonzalez-Solis: Phenomenological applications of rational approximants

Europe/Madrid
Seminar (IFAE)

Seminar

IFAE

Jelena Aleksic (IFAE), Joern Lange (IFAE Barcelona), Stefania Bordoni (IFAE)
Description
In this talk I will first give a brief introduction to the Padé Approximants (PAs) method. PAs are rational functions of a polynomial of order N over a polynomial of order M, constructed in such a manner that they have the same Taylor expansion as the function to be approximated up to order N+M+1. These approximants are known to have better convergence properties than a Taylor expansion, property that I will exploit to parameterize physical observables which are difficult to describe from first principles. In particular, I will tackle gamma-gamma-meson vertex applied to both the space-and time-like energy regions.
Participants
  • Abelardo Moralejo
  • Alba Fernández-Barral
  • Alejandro Belloti
  • Alfonso Garcia
  • Antonio Pineda
  • Bruno Bourguille
  • Chihaya Anzai
  • Daniel Moreno
  • David Vazquez Furelos
  • Dirk Hornung
  • Eduard Masso
  • Emanuele Cavallaro
  • Enrique Fernandez
  • Federico Sanchez
  • Giuliano Panico
  • Gloria de la Rosa
  • Joaquim Palacio Navarro
  • Ke Yang
  • Lluïsa-Maria Mir
  • Manel Martinez
  • Marco Gatti
  • mariano quiros
  • Martine Bosman
  • Matteo Cavalli-Sforza
  • Matthias Jamin
  • Oscar Blanch Bigas
  • Oscar Martinez
  • Paolo Cumani
  • Ramon Miquel
  • Scott Griffiths
  • sergi Gonzalez-solis
  • Sergio Sanchez Cruz
  • Thorsten Lux
  • Xabier Lobregat