Baryon shape

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Abstract

Using a model based on the relativistic mean-field approach, we address the problem of baryon shape. The best option for unravelling a deviation from spherical symmetry being the study of the γNΔ transition, we have evaluated its form factors at Q2 = 0. Our approach shows explicitly a quadrupolar distortion due to the pion cloud and quark angular momentum. Without any fits, we have obtained in the flavor SU(3) limit and up to the 5-quark level a nice agreement with experimental indications.

Original languageEnglish
Title of host publicationHadronic Physics - Joint Meeting Heidelberg-Liege-Paris-Wroclaw, HLPW 2008
Pages268-277
Number of pages10
DOIs
Publication statusPublished - 29 Sept 2008
Externally publishedYes
EventHadronic Physics - Joint Meeting Heidelberg-Liege-Paris-Wroclaw, HLPW 2008 - Spa, Belgium
Duration: 6 Mar 20088 Mar 2008

Publication series

NameAIP Conference Proceedings
Volume1038
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceHadronic Physics - Joint Meeting Heidelberg-Liege-Paris-Wroclaw, HLPW 2008
Country/TerritoryBelgium
CitySpa
Period6/03/088/03/08

Keywords

  • Fock components
  • Light-cone baryon wave function
  • Octet-to-decuplet electromagnetic transition

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