Light Front Cloudy Bag Model: Nucleon Electromagnetic Form Factors

Abstract

The nucleon is modeled, using light front dynamics, as a relativistic system of three bound constituent quarks emersed in a cloud of pions. The pionic cloud is important for understanding low-momentum transfer physics, especially the neutron charge radius, but the quarks are dominant at large momentum transfer. The model achieves a very good description of existing data for the four electromagnetic elastic form factors.

Comments: 7 pages 5 figures, to be submitted to Rapid Comm. of Phys. Rev. C