Charge Radii and Quadrupole Moments of the Low-Lying Baryons in the Chiral Constituent Quark Model

The chiral constituent quark model (χCQM) with general parameterization method (GPM) has been formulated to calculate the charge radii of the spin 1/2+ octet and 3/2+ decuplet baryons and quadrupole moments of the spin 3/2+ decuplet baryons and spin 3/2+→1/2+ transitions. The implications of such a...

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Bibliographic Details
Published in:Advances in high energy physics 2013-01, Vol.2013 (2013), p.1-17
Main Authors: Sharma, Neetika, Dahiya, Harleen
Format: Article
Language:English
Subjects:
Baryons
Broken symmetry
Charge
Constituents
Experiments
Lying
Mathematical models
Parametrization
Quadrupoles
Quark models
Quarks
Spectrum analysis
Studies
Symmetry
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Summary:The chiral constituent quark model (χCQM) with general parameterization method (GPM) has been formulated to calculate the charge radii of the spin 1/2+ octet and 3/2+ decuplet baryons and quadrupole moments of the spin 3/2+ decuplet baryons and spin 3/2+→1/2+ transitions. The implications of such a model have been investigated in detail for the effects of symmetry breaking and GPM parameters pertaining to the one-, two-, and three-quark contributions. Our results are not only comparable with the latest experimental studies but also agree with other phenomenological models. It is found that the χCQM is successful in giving a quantitative and qualitative description of the charge radii and quadrupole moments.
ISSN:1687-7357
1687-7365
DOI:10.1155/2013/756847