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تسجيل مستخدم جديدOn the electromagnetic form factors of hadrons in the time-like region near threshold
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Hadron electromagnetic form factor in the time-like region at the boundary of the physical region is considered. The energy behavior of the form factor is shown to be determined by the strong hadron-antihadron interaction. Imaginary parts of the scattering lengths for $pbar{p}$, $Lambdabar{Lambda}$, $Lambdabar{Sigma}^0 (bar{Lambda}{Sigma}^0)$ and ${Sigma}^0bar{Sigma}^0$ are estimated. Developed approach enables us to estimate imaginary part of the scattering volume from $D^*bar{D^*}$ experimental data. The form factor energy behavior away from the threshold is obtained within a semiphenomenological model of hadron-antihadron interaction.
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