2012/12/31 by Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt +1
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1103/physrevd.87.016017
published as Phys.Rev.D87:016017, 2013 · 20 pages. arXiv admin note: text overlap with arXiv:1204.6612
arxiv created 2013/03/01 · arxiv updated 2013/03/04
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.