Electroexcitation of nucleon resonances at Q^2=0.65 GeV/c^2 from a combined analysis of single- and double-pion electroproduction data

Abstract

Data on single- and double-charged pion electroproduction off protons are successfully described in the second and third nucleon resonance regions with common N* photocouplings. The analysis was carried out using separate isobar models for both reactions. From the combined analysis of two exclusive channels, the gamma* p --> N*+ helicity amplitudes are obtained for the resonances P11(1440), D13(1520), S31(1620), S11(1650), F15(1680), D33(1700), D13(1700), and P13(1720) at Q2=0.65 GeV/c^2.

arXiv comment12 pages, 12 figures (eps), Published in PHYSICAL REVIEW C 72, 045201 (2005)

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Cited by in corpus (43)

• Baryon spectroscopy
• Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction
• Studies of Nucleon Resonance Structure in Exclusive Meson Electroproduction
• Electroexcitation of nucleon resonances
• A study of the $P_{11}(1440)$ and $D_{13}(1520)$ resonances from CLAS data on $ep\to e^{\prime }{\pi }^{+}{\pi }^{-}{p}^{\prime }$
• Electromagnetic Excitation of Nucleon Resonances
• Q^2 Dependence of the S_{11}(1535) Photocoupling and Evidence for a P-wave resonance in eta electroproduction
• New Results from the Studies of the $N(1440)1/2^{+}$, $N(1520)3/2^{-}$, and $\Delta (1620)1/2^{-}$ Resonances in Exclusive $ep\to e^{\prime }{p}^{\prime }{\pi }^{+}{\pi }^{-}$ Electroproduction with the CLAS Detector
• Electroexcitation of the Roper resonance for 1.7 < Q2 < 4.5 GeV2 in ep -> enpi+
• A systematic study of longitudinal and transverse helicity amplidutes in the hypercentral Constituent Quark Model
• Cross sections and beam asymmetries for $\vev{e}p \to enπ^+$ in the nucleon resonance region for $1.7\le Q^2\le 4.5(GeV{)}^2$
• Electroexcitation of the Roper resonance in the relativistic quark models
• Model Analysis of the $ep\to e{p}^{\prime }{\pi }^{+}{\pi }^{-}$ Electroproduction Reaction on the Proton
• Measurements of $ep\to e^{\prime }{\pi }^{+}n$ at W = 1.6 - 2.0 GeV and extraction of nucleon resonance electrocouplings at CLAS
• Electroproduction of Eta Mesons in the S11(1535) Resonance Region at High Momentum Transfer
• Electroproduction of p π^{+} π^{-} off protons at 0.2<Q^{2}<0.6 GeV^{2} and 1.3<W<1.57 GeV with CLAS
• Electroproduction of the Roper resonance on the proton: the role of the three-quark core and the molecular N-sigma component
• Measurements of $ep\to e^{\prime }{\pi }^{+}{\pi }^{-}{p}^{\prime }$ Cross Sections with CLAS at $1.40<W<2.0$ GeV and $2.0<Q^2<5.0$ GeV${}^2$
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• First results on nucleon resonance photocouplings from the $\gamma p\to {\pi }^{+}{\pi }^{-}p$ reaction
• Electromagnetic Transition Form Factors of Baryon Resonances
• The physical meaning of scattering matrix singularities in coupled-channel formalisms
• Results from the N* program at JLab
• Effects of a spin-flavour dependent interaction on light-flavoured baryon helicity amplitudes
• Using the Single Quark Transition Model to predict nucleon resonance amplitudes
• Study of nucleon resonances with electromagnetic interactions
• Coupled-channel analysis of pion- and eta-electroproduction with the Jülich-Bonn-Washington model
• Measurements of the ${\gamma }_{v}p\to p^{\prime }{\pi }^{+}{\pi }^{-}$ cross section with the CLAS detector for $0.4$ GeV${}^2$ $<Q^2<$ $1.0$ GeV${}^2$ and $1.3$ GeV $<W<$ $1.825$ GeV
• The reaction pi N to pi pi N in a meson-exchange approach
• $N^{\ast }$ Form Factors based on a Covariant Quark Model
• Extracting meson-baryon contributions to the electroexcitation of the $N(1675){\frac{5}{2}}^{-}$ nucleon resonance
• Q^2-evolution of nucleon-to-resonance transition form factors in a QCD-inspired vector-meson-dominance model
• Phenomenological studies of double charged pion electroproduction from the CLAS data
• Charged current (anti)neutrino induced eta production off the nucleon
• Gauge- and point-invariant vertices of nucleon-to-resonance interactions
• TWOPEG: An Event Generator for Charged Double Pion Electroproduction off Proton
• Recent results on nucleon resonance electrocouplings from the studies of ${\pi }^{+}{\pi }^{-}p$ electroproduction with the CLAS detector
• Si$\Lambda$ViO: A Trigger for $\Lambda$-Particles
• The N* Physics Program at Jefferson Lab
• Symmetries of higher-spin fields and the electromagnetic N-N(1680) form factors
• Analysis of CLAS data on double charge pion electroproduction
• Probing the nucleon structure with CLAS
• Si$\Lambda$ViO: A Trigger for $\Lambda$-Hyperons