Electromagnetic Form Factors in a Collective Model of the Nucleon

Abstract

We study the electromagnetic form factors of the nucleon in a collective model of baryons. Using the algebraic approach to hadron structure, we derive closed expressions for both elastic and transition form factors, and consequently for the helicity amplitudes that can be measured in electro- and photoproduction. Effects of spin-flavor symmetry breaking and of swelling of hadrons with increasing excitation energy are considered.

31 pages, Latex, 22 figures, Phy. Rev. C in press

References in corpus (2)

• Algebraic models of hadron structure: I. Nonstrange baryons
• Baryon Current Matrix Elements in a Light-Front Framework

Cited by in corpus (30)

• Dynamical Study of the Delta Excitation in N(e,e' pi) Reactions
• Algebraic Models of Hadron Structure II. Strange Baryons
• Re-analysis of the nucleon space- and time-like electromagnetic form factors in a two-component model
• Unquenched quark model for baryons: magnetic moments, spins and orbital angular momenta
• A systematic study of longitudinal and transverse helicity amplidutes in the hypercentral Constituent Quark Model
• Nucleon Charge Symmetry Breaking and Parity Violating Electron-Proton Scattering
• Strong decays of qqq baryons
• Generalized parton distributions and composite constituent quarks
• Electromagnetic Transition Form Factors of Baryon Resonances
• Algebraic treatment of the hyper-Coulomb problem
• Valence quark and meson cloud contributions to the ${\gamma }^{\ast }N\to N^{\ast }(1520)$ form factors
• Backward electroproduction of pi0 mesons on protons in the region of nucleon resonances at four momentum transfer squared Q**2 = 1.0 GeV**2
• Using the Single Quark Transition Model to predict nucleon resonance amplitudes
• Baryons in O(4) and Vibron Model
• ${\gamma }^{\ast }N\to N(1710)$ transition at high momentum transfer
• Problems with Extraction of the Nucleon to Delta(1232) Photonic Amplitudes
• Strange form factors of the nucleon in a two-component model
• Helicity-dependent generalized parton distributions and composite constituent quarks
• Sensitivity of tensor analyzing power in the process $d+p\to d+X$ to the longitudinal isoscalar form factor of the Roper resonance electroexcitation
• Quantum states of indefinite spins: From baryons to massive gravitino
• The $N-\Delta$ Weak Axial-Vector Amplitude $C_5^a(0)$
• Quark model predictions for the SU(6)-breaking ratio of the proton momentum distributions
• Photoproduction of electron-positron pairs on the proton in the resonance region
• Roper excitation in $\vec{p}+\alpha \to \vec{p}+\alpha +X$ reactions
• Electromagnetic Form Factors of the Nucleon in a Relativistic Quark Pair Creation Model
• Hadron Spectroscopy in the Unquenched Quark Model
• Diquark correlations in baryons: the Interacting Quark Diquark Model
• The unquenched quark model
• The baryon spectroscopy: strong decays and strange suppression
• Spectrum generating algebra of the symmetric top