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arXiv · 1212.6252

Nucleon resonances in AdS/QCD

Thomas Gutsche·Valery E. Lyubovitskij·Ivan Schmidt·Alfredo Vega
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Abstract

We describe the electroproduction of the N(1440) Roper resonance in soft-wall AdS/QCD. The Roper resonance is identified as the first radially excited state of the nucleon, where higher-Fock states in addition to the three-quark component are included. The main conclusion is that the leading 3q component plays the dominant role in the description of electroproduction properties of this resonance: form factors, helicity amplitudes and charge densities. The obtained results are in good agreement with the recent results of the CLAS Collaboration at JLab.

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Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt, Alfredo Vega. 2013-03-01. Nucleon resonances in AdS/QCD. https://doi.org/10.1103/physrevd.87.016017

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