Can the "standard" unitarized Regge models describe the TOTEM data?

TL;DR

This paper evaluates whether standard unitarized Regge models can accurately describe high-energy elastic scattering data from the TOTEM experiment, highlighting the need for model modifications for better data fit.

Contribution

It demonstrates that models with three pomerons and two odderons can fit high-energy scattering data but require further modifications for improved accuracy.

Findings

Models with three pomerons and two odderons fit high-energy data.

Both eikonal and U-matrix models need modifications for better data description.

Further model refinements are necessary for energies between 19 GeV and 7 TeV.

Abstract

The standard Regge poles are considered as inputs for two unitarization methods: eikonal and U-matrix. It is shown that only models with three input pomerons and two input odderons can describe the high energy data on $pp$ and $\bar pp$ elastic scattering including the new data from Tevatron and LHC. However, it seems that the both considered models (eikonal and U-matrix) require a further modification (e.g., to explore nonlinear reggeon trajectories and/or nonexponential vertex functions) for a more satisfactory description of the data at 19.0 GeV$\leq \sqrt{s}\leq$ 7 TeV and 0.01 $\leq |t|\leq $14.2 GeV$^{2}$.