Abstract
Using a covariant spectator quark model that describes the recent lattice QCD data for the electromagnetic form factors and all available experimental data on transitions, we analyze the charge and magnetic dipole distributions of the baryon and discuss its shape. We conclude that the quadrupole moment of the is a good indicator of the deformation and that the charge distribution has an oblate shape. We also calculate transverse moments and find that they do not lead to unambiguous conclusions about the underlying shape.
1 More- Received 19 July 2012
DOI:https://doi.org/10.1103/PhysRevD.86.093022
© 2012 American Physical Society