Electroexcitation of the P33(1232), P11(1440), D13(1520), S11(1535) at Q^2=0.4 and 0.65(GeV/c)^2

Abstract

Using two approaches: dispersion relations and isobar model, we have analyzed recent high precision CLAS data on cross sections of π^0, π^+, and ηelectroproduction on protons, and the longitudinally polarized electron beam asymmetry for p(\vec{e},e'p)π^0 and p(\vec{e},e'n)π^+. The contributions of the resonances P33(1232), P11(1440), D13(1520), S11(1535) to πelectroproduction and S11(1535) to ηelectroproduction are found. The results obtained in the two approaches are in good agreement with each other. There is also good agreement between amplitudes of the γ^* N \to S11(1535) transition found in πand ηelectroproduction. For the first time accurate results are obtained for the longitudinal amplitudes of the P11(1440), D13(1520) and S11(1535) electroexcitation on protons.

arXiv comment9 pages, 9 figures

References in corpus (22)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• A unitary isobar model for pion photo- and electroproduction on the proton up to 1 GeV
• Chiral Dynamics and the $S_{11}(1535)$ Nucleon Resonance
• Baryon Current Matrix Elements in a Light-Front Framework
• $Q^2$ Dependence of Quadrupole Strength in the ${\gamma }^{\ast }p\to {\Delta }^{+}(1232)\to p{\pi }^0$ Transition
• Analysis of Pion Photoproduction Data
• A Measurement of the Electric Form Factor of the Neutron through $\vec{d}(\vec{e},e^{\prime }n)p$ at $Q^2=0.5$ (GeV/c)${}^2$
• Updated resonance photo-decay amplitudes to 2 GeV
• Measurement of the Electric Form Factor of the Neutron at Q^2=0.5 and 1.0 (GeV/c)^2
• An isobar model for eta photo- and electroproduction on the nucleon
• Extraction of electromagnetic neutron form factors through inclusive and exclusive polarized electron scattering on polarized 3He target
• The neutron charge form factor and target analyzing powers from pol.3He(pol e,e'n)-scattering
• The e p -> e' p eta reaction at and above the S11(1535) baryon resonance
• Electromagnetic transition form factors of negative parity nucleon resonances
• Electroproduction of nucleon resonances
• Multipole Amplitudes of Pion Photoproduction on Nucleons up to 2GeV within Dispersion Relations and Unitary Isobar Model
• Measurement of the Polarized Structure Function ${\sigma }_{L{T}^{\prime }}$ for $p(\vec{e},e^{\prime }p){\pi }^o$ in the $\Delta (1232)$ Resonance Region
• A consistent explanation of the Roper phenomenology
• Single Quark Transition Model Analysis of Electromagnetic Nucleon Resonance Transitions in the [70,1-] Supermultiplet
• Resonance Contributions to $\eta$ Photoproduction on Protons Found Using Dispersion Relations and an Isobar Model
• Measurement of the Polarized Structure Function ${\sigma }_{L{T}^{\prime }}$ for $p(\vec{e},e^{\prime }{\pi }^{+})n$ in the $\Delta (1232)$ Resonance Region
• N to Delta electromagnetic transition form factors from Lattice QCD

Cited by in corpus (56)

• Unitary Isobar Model - MAID2007
• 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 $ep\to e^{\prime }{\pi }^{+}{\pi }^{-}{p}^{\prime }$
• Resonance production by neutrinos: The second resonance region
• 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
• Resonance production by neutrinos: I. J=3/2 Resonances
• 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
• Nucleon electromagnetic form factors and electroexcitation of low lying nucleon resonances in a light-front relativistic quark model
• Electroexcitation of nucleon resonances at Q^2=0.65 GeV/c^2 from a combined analysis of single- and double-pion electroproduction data
• 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
• Nucleon-to-Roper electromagnetic transition form factors at large-$Q^2$
• Regge-plus-resonance treatment of the p(gamma,K^+)Sigma^0 and p(gamma,K^0)Sigma^+ reactions at forward kaon angles
• Empirical transverse charge densities in the nucleon-to-P11(1440) transition
• Measurements of $ep\to e^{\prime }{\pi }^{+}n$ at W = 1.6 - 2.0 GeV and extraction of nucleon resonance electrocouplings at CLAS
• Proton polarizability effect in the Lamb shift of the hydrogen atom
• Electron- versus neutrino-nucleus scattering
• The role of the $qqqq\bar{q}$ components in the electromagnetic transition ${\gamma }^{\ast }N\to N^{\ast }(1535)$
• Hadron structure at low Q^2
• The role of $q\bar{q}$ components in the N(1440) resonance
• 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
• Jülich-Bonn-Washington Model for Pion Electroproduction Multipoles
• Electromagnetic Transition Form Factors of Baryon Resonances
• Spectrum and structure of octet and decuplet baryons and their positive-parity excitations
• Quark-hadron duality in neutrino scattering
• Results from the N* program at JLab
• Neutral Pion Electroproduction in the Resonance Region at High $Q^2$
• Neutrino induced threshold production of two pions and N^*(1440) electroweak form factors
• Electromagnetic transition form factors of the Roper resonance in effective field theory
• Measurement of the Polarized Structure Function ${\sigma }_{L{T}^{\prime }}$ for Pion Electroproduction in the Roper Resonance Region
• First measurement of target and double spin asymmetries for polarized e- polarized p --> e p pi0 in the nucleon resonance region above the Delta(1232)
• Effects of a spin-flavour dependent interaction on light-flavoured baryon helicity amplitudes
• Nucleon resonances with higher spins in soft-wall AdS/QCD
• Coupled-channel analysis of pion- and eta-electroproduction with the Jülich-Bonn-Washington model
• Study of nucleon resonances with electromagnetic interactions
• Extracting meson-baryon contributions to the electroexcitation of the $N(1675){\frac{5}{2}}^{-}$ nucleon resonance
• A dynamical model for pion electroproduction on the nucleon
• Recoil polarization and beam-recoil double polarization measurement of ηelectroproduction on the proton in the region of the S_{11}(1535) resonance
• $\gamma N\to N^{\ast }(1535)$ transition in soft-wall AdS/QCD
• Structure for the breathing mode of the nucleon from high energy p-p scattering
• 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
• Electromagnetic transition amplitude for Roper resonance from holographic QCD
• Production of Two Pions Induced by Neutrinos
• Assessing the theory-data tension in neutrino-induced charged pion production: the effect of final-state nucleon distortion
• Charged current (anti)neutrino induced eta production off the nucleon
• Recent results on nucleon resonance electrocouplings from the studies of ${\pi }^{+}{\pi }^{-}p$ electroproduction with the CLAS detector
• Radiative decay into gamma-baryon of dynamically generated resonances from the vector-baryon interaction
• The N* Physics Program at Jefferson Lab
• Analysis of CLAS data on double charge pion electroproduction
• Helicity amplitudes of $N(1520)$ and $N(1535)$ including pentaquark components
• Probing the nucleon structure with CLAS