Electroweak form factors of non-strange baryons

Dirk Merten; Ulrich Loering; Klaus Kretzschmar; Bernard Metsch; Herbert-R. Petry

Electroweak form factors of non-strange baryons

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: Dirk Merten , Ulrich Loering , Klaus Kretzschmar , Bernard Metsch , Herbert-R. Petry

Abstract

We compute electroweak form factors of the nucleon and photon transition form factors of non-strange baryon resonances up to the third resonance region in a model with instanton-induced interaction. The calculation is based on the Bethe-Salpeter equation for three light constituent quarks and is fully relativistic (U. L\"oring {\it et al.}, Eur. Phys. J. {\bf A10}, 309 (2001)). Static nucleon properties and photon resonance couplings are in good agreement with experiment and the $Q^2$ -behaviour of the experimentally known form factors up to large momentum transfer is accounted for.

Keywords

electroweak form factors non-strange baryons Bethe-Salpeter equation instanton-induced interaction photon transition form factors nucleon resonances

Cite

@article{arxiv.hep-ph/0204024,
  title  = {Electroweak form factors of non-strange baryons},
  author = {Dirk Merten and Ulrich Loering and Klaus Kretzschmar and Bernard Metsch and Herbert-R. Petry},
  journal= {arXiv preprint arXiv:hep-ph/0204024},
  year   = {2007}
}

Comments

12 pages, 17 figures, submitted to Eur. Phys. J. A

Electroweak form factors of non-strange baryons

Abstract

Keywords

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