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

Abstract

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.

3 pages, 1 figure, 2 tables. Talk presented at the IV International Conference on Quarks and Nuclear Physics (QNP06), 5th June 2006 - 10th June 2006, Madrid. To be published in The European Physical Journal A

References in corpus (2)

• Lowest Q^2 Measurement of the gamma*p -> Delta Reaction: Probing the Pionic Contribution
• Effective Lagrangian Approach to pion photoproduction from the nucleon

Cited by in corpus (6)

• A Covariant model for the nucleon and the $\Delta$
• Properties of Nucleon Resonances by means of a Genetic Algorithm
• Photoproduction of pi0-mesons off neutrons in the nucleon resonance region
• Crossing symmetry and phenomenological widths in effective Lagrangian models of the pion photoproduction process
• Eta Photoproduction as a Test of the Extended Chiral Symmetry
• Spin asymmetry for the 16O(gamma,pi- p) reaction in the Delta(1232) region within an effective Lagrangian approach