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Few-Body Systems

, Volume 49, Issue 1–4, pp 111–119 | Cite as

Electromagnetic Structure of the Δ Baryon within the Covariant Spectator Theory

  • M. T. PeñaEmail author
  • G. Ramalho
  • Franz Gross
Article
  • 46 Downloads

Abstract

We calculated all the electromagnetic observables for the nucleon and its lowest-lying Δ(1232) excitation within a constituent quark model for those two baryons based on the covariant spectator theory. Once the reactions γ NN and γ N → Δ were described, we predicted without further adjusting of parameters the four electromagnetic Δ form factors: the electric charge G E0, the magnetic dipole G M1, the electric quadrupole G E2 and the magnetic octupole G M3. The results are compatible with the available experimental data and recent lattice QCD data.

Keywords

Form Factor Constituent Quark Electromagnetic Form Factor Transition Form Factor Constituent Quark Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Centro de Física Teórica de Partículas and Dpt. of Physics, Instituto Superior TécnicoUniversidade Técnica de LisboaLisboaPortugal
  2. 2.Thomas Jefferson National Accelerator FacilityNewport News, VirginiaUSA

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