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The Hypercentral Constituent Quark Model and its symmetry

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arxiv 1507.02817 v1 pith:A6UOODIG submitted 2015-07-10 nucl-th

The Hypercentral Constituent Quark Model and its symmetry

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keywords modelhypercentralquarksymmetryacceptedagreementallowedamplitudes
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The hypercentral CQM, which is inspired by Lattice QCD calculations for quark-antiquark potentials, is presented, stressing its underlying symmetry. Its results for the spectrum, the helicity amplitudes and the elastic form factors are briefly reported. In the latter case the model has allowed to show, for the first time in the framework of a quark model, that relativistic effects are responsible for a deviation from the usually accepted dipole behaviour, in agreement with recent data taken at the Jefferson Lab.

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