Elastic pp and p̄p scattering in the models of unitarized pomeron

Elastic scattering amplitudes with pomeron singularity by construction meeting the main unitarity bounds valid at high energy are considered. Restrictions for a form of pomeron singularity are stressed. The models of double and triple (at t = 0) pomeron pole with additional terms important for low energies are compared with all existing experimental data on pp and p̄p total and differential cross sections at √ s ≥ 5 GeV and |t| ≤ 6 GeV2. Good agreement with data is obtained for both models, however the dipole pomeron model gives a slightly better description of the data. Predictions made for the LHC energy demonstrate a big enough difference of the models at t ≈ −0.4 GeV2. Such a difference, apparently allows to choose a more reasonable model after TOTEM measurements.