Analysis of the quadrupole deformation of $\Delta$(1232) within an effective Lagrangian model for pion photoproduction from the nucleon

C. Fernandez-Ramirez (Instituto de Estructura de la Materia; CSIC; E. Moya de Guerra (Departamento de Fisica Atomica; J.M. Udias (Departamento de Fisica Atomica; Molecular y Nuclear; Spain); Universidad Complutense de Madrid

arxiv: nucl-th/0611062 · v1 · submitted 2006-11-16 · ⚛️ nucl-th

Analysis of the quadrupole deformation of Delta(1232) within an effective Lagrangian model for pion photoproduction from the nucleon

C. Fernandez-Ramirez (Instituto de Estructura de la Materia , CSIC , Spain) , E. Moya de Guerra (Departamento de Fisica Atomica , Molecular y Nuclear , Universidad Complutense de Madrid , J.M. Udias (Departamento de Fisica Atomica This is my paper

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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.

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Analysis of the quadrupole deformation of Delta(1232) within an effective Lagrangian model for pion photoproduction from the nucleon

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