Electromagnetic form factors of the Delta in a S-wave approach

Details Electromagnetic form factors of the Delta in a S-wave approach Electromagnetic form factors of the Delta in a S-wave approach

2008-07-18

arxiv.org/abs/0807.2922v3

J.Phys.G36:085004,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 3 figures

Scientific paper

10.1088/0954-3899/36/8/085004

Without any further adjusting of parameters, a relativistic constituent quark model, successful in the description of the data for the nucleon elastic form factors and of the dominant contribution for the nucleon to Delta electromagnetic transition, is used here to predict the dominant electromagnetic form factors of the Delta baryon. The model is based on a simple Delta wave function corresponding to a quark-diquark system in an S-state. The results for E0 and M1 are consistent both with experimental results and lattice calculations. The remaining form factors E2 and M3 vanish, given the symmetric structure taken for the Delta.

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