Strange form factors in the context of SAMPLE, HAPPEX, and A4 experiments

Abstract

The strange properties of the nucleon are investigated within the framework of the SU(3) chiral quark-soliton model assuming isospin symmetry and applying the symmetry conserving SU(3) quantization. We present the form factors $G_{E,M}^0(Q^2)$, $G_M^Z(Q^2)$ and the electric and magnetic strange form factors $G_{E,M}^s(Q^2)$ incorporating pion and kaon asymptotics. The results show a fairly good agreement with the recent experimental data from the SAMPLE and HAPPEX collaborations. We also present predictions for future measurements including the A4 experiment at MAMI (Mainz).

10 pages with four figures. RevTeX4 is used. Few lines are changed. Accepted for publication in Phys.Rev. D

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