1307.0936 (V. F. Dmitriev et al.)

Isoscalar amplitude dominance in $e^+e-$ annihilation to $N\bar{N}$ pair
close to the threshold    [PDF]

V. F. Dmitriev, A. I. Milstein, S. G. Salnikov

We use the Paris nucleon-antinucleon optical potential for explanation of experimental data in the process $e^+e^- \rightarrow p\bar p$ near threshold. It turns out that final-state interaction due to Paris optical potential allows us to reproduce available experimental data. It follows from our consideration that the isoscalar form factor is much larger than the isovector one.

View original: http://arxiv.org/abs/1307.0936