Speaker
Santiago Cortes
(Universidad de los Andes)
Description
We describe the mass spectrum of light pseudoscalars and axial mesons using a modified softwall model with an UV cutoff. These mesons are included using an anomalous dimension that shift the conformal dimension of the non-interacting bulk fields. Using the extra UV cutoff approach, we can fit six eta and six a1 states organized in radial trajectories with an error close to 21.1%. We also confirm that chiral symmetry is restored in this model after checking that highly excited rho and a1 states become degenerate.
Authors
Santiago Cortes
(Universidad de los Andes)
Dr
Miguel Angel Martin Contreras
(Universidad de Valparaíso)
Prof.
Alfredo Vega
(Universidad de Valparaíso)
