Odderon effects in the differential cross-sections at Tevatron and LHC energies

TL;DR

This paper extends the Froissaron-Maximal Odderon approach to non-zero momentum transfer, providing strong evidence for the Odderon through analysis of differential cross-section data from Tevatron and LHC energies, and predicting sign changes at very high energies.

Contribution

The paper introduces an extended FMO model at non-zero t, successfully describing extensive experimental data and offering new evidence for the Odderon with novel theoretical and phenomenological predictions.

Findings

Evidence for Odderon from differential cross-section data.

Sign change in the dip-bump region at high energies.

Different t-behavior of slopes in pp and p̄p scattering.

Abstract

In the present paper, we extend the Froissaron-Maximal Odderon (FMO) approach at $t$ different from 0. Our extended FMO approach gives an excellent description of the 3266 experimental points considered in a wide range of energies and momentum transferred. We show that the very interesting TOTEM results for proton-proton differential cross-section in the range 2.76-13 TeV, together with the Tevatron data for antiproton-proton at 1.8 and 1.96 TeV give further experimental evidence for the existence of the Odderon. One spectacular theoretical result is the fact that the difference in the dip-bump region between $\bar pp$ and $pp$ differential cross-sections is diminishing with increasing energies and for very high energies (say 100 TeV), the difference between $\bar pp$ and $pp$ in the dip-bump region is changing its sign: $pp$ becomes bigger than $\bar pp$ at $|t|$ about 1 GeV$^2$. This is a typical Odderon effect. Another important - phenomenological - result of our approach is that the slope in $pp$ scattering has different behavior in $t$ than the slope in $\bar pp$ scattering. This is also a clear Odderon effect.