DAPNIA-07-67 |
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Two-component model for the axial form factor of the nucleon |
C. Adamuscin, E. Tomasi-Gustafsson, E. Santopinto, R. Bijker |
A simple phenomenological parametrization for the axial nucleon form factor, in space-like and time-like regions is suggested. A good fit on the available data, with a minimal number of parameters is obtained. The present description of the nucleon structure is based on a compact core, surrounded by an axial meson cloud. |