RN-EMP-2015-003

The results of simulations for future measurements of electromagnetic form factors at PANDA
(FAIR) in frame of the PANDARoot software are reported. The statistical precision at which the proton form factors can be determined is estimated. The suppression of the main background (pbar p -> pi+pi-) process versus the signal (pbar p -> e+e-) efficiency, the extraction of the information from the relevant spectra and the evaluation of the statistical errors on the extracted proton form factors from the events of the reaction pbar p -> e+e- have been done on the basis of two different but consistent procedures. The procedure developed here will be directly applied to the experimental data. The comparison with older predictions based on old framework shows consistency of the results and a slightly better precision achieved in a large range of momentum transfer, assuming the nominal conditions of beam and detector performances.