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High Energy Physics - Phenomenology

arXiv:1008.3184 (hep-ph)
[Submitted on 18 Aug 2010 (v1), last revised 23 Aug 2010 (this version, v2)]

Title:Delta and Omega electromagnetic form factors in a Dyson-Schwinger/Bethe-Salpeter approach

Authors:Diana Nicmorus, Gernot Eichmann, Reinhard Alkofer
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Abstract:We investigate the electromagnetic form factors of the Delta and the Omega baryons within the Poincare-covariant framework of Dyson-Schwinger and Bethe-Salpeter equations. The three-quark core contributions of the form factors are evaluated by employing a quark-diquark approximation. We use a consistent setup for the quark-gluon dressing, the quark-quark bound-state kernel and the quark-photon interaction. Our predictions for the multipole form factors are compatible with available experimental data and quark-model estimates. The current-quark mass evolution of the static electromagnetic properties agrees with results provided by lattice calculations.
Comments: 16 pages, 7 figures, 1 table, added references
Subjects: High Energy Physics - Phenomenology (hep-ph); High Energy Physics - Lattice (hep-lat); Nuclear Theory (nucl-th)
Cite as: arXiv:1008.3184 [hep-ph]
  (or arXiv:1008.3184v2 [hep-ph] for this version)
  https://doi.org/10.48550/arXiv.1008.3184
Journal reference: Phys.Rev.D82:114017,2010
Related DOI: https://doi.org/10.1103/PhysRevD.82.114017

Submission history

From: Diana Nicmorus [view email]
[v1] Wed, 18 Aug 2010 22:33:41 UTC (532 KB)
[v2] Mon, 23 Aug 2010 22:52:09 UTC (530 KB)
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