The strangeness form factors of the proton

The present empirical information on the strangeness form factors indicates that the corresponding uudss component in the proton is such that the uuds subsystem has the flavor spin symmetry [4](FS)[22](F)[22](S) and mixed orbital symmetry [31](X). This uudss configuration leads to the empirical signs of all the form factors G(E)(S), G(M)(S) and G(A)(S). An analysis with simple quark model wave functions for the preferred configuration shows that the qualitative features of the empirical strangeness form factors may be described with a similar to 15% admixture of it uudss with a compact wave function in the proton. Transition matrix elements between the uud and uudss components give significant contributions. (c) 2006 Elsevier B.V. All rights reserved.