Nucleon form factors measurements via the radiative return at B-meson factories

Abstract

The present-day experimental situation concerning nucleon form factors in the space-like region shows a substantial discrepancy between measurements via the Rosenbluth method and the recoil polarisation technique. More information about nucleon form factors in the time-like region will not only improve poor experimental knowledge there, but it will also shed light on the situation in the space-like region. The radiative return method is a powerful tool to provide that information using data of B- meson factories.