Shapes of the Nucleon

Abstract

Previously defined spin-dependent quark densities that are matrix elements of specific density operators in proton states of definite spin-polarization generally have an infinite variety of non-spherical shapes. The present application is concerned with both charge and matter densities. We show that the Gross & Agbakpe model nucleon harbors an interesting variety of non-spherical shapes.

8 pages 3 figures

References in corpus (12)

• The ratio of proton's electric to magnetic form factors measured by polarization transfer
• Measurement of GEp/GMp in ep -> ep to Q2 = 5.6 GeV2
• Perturbative QCD Analysis of the Nucleon's Pauli Form Factor F_2(Q^2)
• Nucleon Form Factors in QCD
• Light Front Cloudy Bag Model: Nucleon Electromagnetic Form Factors
• The Role of Color Neutrality in Nuclear Physics--Modifications of Nucleonic Wave Functions
• Quantum Color Transparency and Nuclear Filtering
• Light-Cone Sum Rules for the Nucleon Form Factors
• $Q^2$ Independence of $Q{F}_2/F_1$, Poincare Invariance and the Non-Conservation of Helicity
• Shapes of the Proton
• The shape of the nucleon
• Hadron Helicity Violation in Exclusive Processes: Quantitative Calculations in Leading Order QCD

Cited by in corpus (10)

• Nucleon Electromagnetic Form Factors
• Global analysis of proton elastic form factor data with two-photon exchange corrections
• Transverse Charge Densities
• A pure S-wave covariant model for the nucleon
• Densities, Parton Distributions, and Measuring the Non-Spherical Shape of the Nucleon
• Electromagnetic Transition Form Factors of Baryon Resonances
• Nonidentical protons
• Spontaneous Breaking of Rotational Symmetry in Rotating Solitons - a Toy Model of Excited Nucleons with High Angular Momentum
• Subtleties of Lorentz Invariance in Relativistic Constituent Quark Models of the Nucleon and the Spin-Dependent Quark Density
• Review of Rotational Symmetry Breaking in Baby Skyrme Models