Analysis of the quadrupole deformation of $\Delta$(1232) within an   effective Lagrangian model for pion photoproduction from the nucleon
  We present an extraction of the E2/M1 ratio of the $\Delta$(1232) from experimental data applying an effective Lagrangian model. We compare the result obtained with different nucleonic models and we reconcile the experimental results with the Lattice QCD calculations. 
C. Fernandez-Ramirez (Instituto de Estructura de la Materia, CSIC,   Spain), E. Moya de Guerra (Departamento de Fisica Atomi...