E2 and C2 amplitudes for electroproduction of $\Delta$

M. Fiolhais; B. Golli; S. Sirca

E2 and C2 amplitudes for electroproduction of $\Delta$

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: M. Fiolhais , B. Golli , S. Sirca

Abstract

We compute the amplitudes for the electromagnetic $\gamma_v N \to \Delta$ transition in the framework of soliton models with quarks and mesons. The ratios E2/M1 and C2/M1 as functions of the photon four-momentum squared are dominated by the contribution of the pion cloud and are in reasonable agreement with the available experimental data.

Keywords

electroproduction Delta resonance E2/M1 ratio C2/M1 ratio soliton model pion cloud

Cite

@article{arxiv.hep-ph/9512391,
  title  = {E2 and C2 amplitudes for electroproduction of $\Delta$},
  author = {M. Fiolhais and B. Golli and S. Sirca},
  journal= {arXiv preprint arXiv:hep-ph/9512391},
  year   = {2007}
}

Comments

4 pages LaTeX, uses psfig.sty, one figure added as uuencoded gzipped postscript file, two figures included in source; (Contribution to the Baryons '95 Conference, Santa Fe)

E2 and C2 amplitudes for electroproduction of $\Delta$

Abstract

Keywords

Cite

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