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Configuration mixings and light-front relativistic quark model predictions for the electroexcitation of the Delta(1232)3/2+, N(1440)1/2+, and Delta(1600)3/2+

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arxiv 1603.06692 v1 pith:M6CEM3LD submitted 2016-03-22 hep-ph

I. G. Aznauryan , V. D. Burkert This is my paper · ORCID
classification hep-ph
keywords deltamixingsgammaconfigurationconfigurationsearlierelectroexcitationlight-front
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We investigate the impact of the configurations mixings that follow from QCD-inspired interquark forces on our results for the electroexcitation of the Delta(1232)3/2+, N(1440)1/2+, and Delta(1600)3/2+ obtained earlier in the light-front relativistic quark model. We have shown that the configurations mixings increase the 3q contribution to the gamma* N -> Delta(1232)3/2+ magnetic-dipole form factor at Q2=0 from 42% to 63% and significantly improve the agreement with experiment for the gamma* p -> N(1440)1/2+ transverse helicity amplitude at Q2 > 1.5GeV2. For the gamma* N -> Delta(1600)3/2+ transition, configuration mixings change strongly the results obtained earlier for the N and Delta(1600)3/2+ taken as pure states in the multiplets [56,0+] and [56',0+].

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Cited by 2 Pith papers

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  1. Electroexcitation of Nucleon Resonances and the Emergence of Hadron Mass

    hep-ph 2025-05 conditional novelty 2.0 of 10

    A review argues that Jefferson Lab electroproduction data on nucleon resonances, analyzed with continuum Schwinger methods, confirm a momentum-dependent dressed quark mass, the essence of emergent hadron mass.

  2. Nucleon-to-Resonance Form Factors at Large Photon Virtualities

    nucl-th 2019-08 conditional novelty 2.0 of 10

    A quark-diquark Faddeev model with QCD-kindred momentum dependence reproduces high-Q2 nucleon-to-resonance transition form factors and predicts Delta(1600) electroproduction form factors of definite sign over 0<Q2<=6m_N^2.

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