Observation of Odderon Effects at LHC energies -- A Real Extended Bialas-Bzdak Model Study

TL;DR

This study uses an extended Bialas-Bzdak model to analyze elastic scattering data, providing significant evidence for Odderon effects at LHC energies by comparing proton-proton and proton-antiproton collisions.

Contribution

It applies a unitarily extended Bialas-Bzdak model to demonstrate the presence of Odderon effects in elastic scattering at high energies, a novel model-dependent analysis.

Findings

Significant difference between proton-proton and proton-antiproton differential cross-sections at LHC energies.

Model-dependent evidence for a crossing-odd component (Odderon) at at least 7.08 sigma significance.

Determination of the energy dependence of Odderon and Pomeron amplitudes.

Abstract

The unitarily extended Bialas-Bzdak model of elastic proton-proton scattering is applied, without modifications, to describe the differential cross-section of elastic proton-antiproton collisions in the TeV energy range, and to extrapolate these differential cross-sections to LHC energies. In this model-dependent study we find that the differential cross-sections of elastic proton-proton collision data at 2.76 and 7 TeV energies differ significantly from the differential cross-section of elastic proton-antiproton collisions extrapolated to these energies. The elastic proton-proton differential cross-sections, extrapolated to 1.96 TeV energy with the help of this extended Bialas-Bzdak model do not differ significantly from that of elastic proton-antiproton collisions, within the theoretical errors of the extrapolation. Taken together these results provide a model-dependent, but statistically significant evidence for a crossing-odd component of the elastic scattering amplitude at the at least 7.08 sigma level. From the reconstructed Odderon and Pomeron amplitudes, we determine the $\sqrt{s}$ dependence of the corresponding total and differential cross-sections.