Reliability Analysis of the Results of the Known Experiments on Measuring of the Sachs Form Factor Ratio Using the Rosenbluth Technique. Polarization of the Final Proton in the $e \vec p \to e \vec p$ Elastic Process

Abstract

A criterion for assessing the reliability of measurements of the Sachs form factor ratio using the Rosenbluth technique is proposed and applied to an analysis of three known experiments (Andi-vahis1994, Walker1994, Qattan2005) and a recent experiment on the CEBAF accelerator upgraded to 12 GeV at JLab (arXiv:2103.01842 [nucl-ex]). Based on the results of the JLab polarization experiments on measuring the ratio µpGE/GM in the ep → e p process, in the kinematics of the SANE experiment (2020) on the measurement of double spin asymmetry in the e p → ep process numerical calculations are performed for the Q 2 dependence of polarization transferred to the proton in the e p → e p process when the initial proton at rest is partially polarized along the direction of motion of the detected recoil proton.