Speaker
Oleg Selyugin
(JINR)
Description
Analysis of the new experimental data obtained by the TOTEM and ATLAS Collaborations
at LHC at \sqrt{s} = 7 and 8 TeV at small momentum transfer is presented. Some contradictions
in the obtained sizes of the total cross sections are analyzed. The impact of the different
assumptions on the extraction of the parameters of the elastic scattering amplitude, especially
on the size of the total cross sections, is examined. The determination of the phase of the
elastic scattering amplitude from the point of view of the Dispersion Relation is carried out. The
origins of the dependence of the slopes of the different parts of the scattering amplitude over the
momentum transfer are analyzed with taken into account the different models assumptions. Our
new method of extracting the real part of the hadron scattering amplitude from experimental
data is used to obtain the the size of \sigma_tot(s) and \rho(s; t) and compare with the the parameters
of the the hadron scattering amplitude obtained by the TOTEM and ATLAS Collaborations.
The analysis of the data is compared with the similar analysis in the Regge approach for the
hadron scattering amplitude.
Primary authors
Jean-Rene' Cudell
(Univ. Liege)
Oleg Selyugin
(JINR)
