1204.4422 (Ian C. Cloet et al.)

Nucleon form factors and spin content in a quark-diquark model with a
pion cloud    [PDF]

Ian C. Cloet, Gerald A. Miller

We propose a new model of the nucleon in which quark-diquark configurations immersed in a pion cloud are treated in a manner consistent with Poincar\'e invariance. With suitably chosen parameters, the computations employing this model reproduce the measured electromagnetic form factors and the quark-spin contribution to the total nucleon angular momentum.

View original: http://arxiv.org/abs/1204.4422