Holographic Odderon at TOTEM ?

TL;DR

This paper investigates the role of the Odderon in high-energy proton-proton and proton-antiproton elastic scattering using holographic QCD models, providing theoretical predictions that align with recent TOTEM experimental data.

Contribution

It introduces a holographic approach to model the Odderon as a Reggeized glueball, connecting gravity dual descriptions with scattering observables.

Findings

Small rho-parameter consistent with experimental data

Differential and total cross sections match TOTEM results

Holographic model captures key features of high-energy scattering

Abstract

We consider the contribution of the Odderon to diffractive $pp$ and $p\bar p$ elastic scattering at large center of mass energy. We identify the Odderon and Pomeron with the Reggeized $1^{\pm-}$ and $2^{++}$ glueballs in the bulk, respectively. We use for the gravity dual description the repulsive wall model, to account for the proper Gribov diffusion for off-forward scattering. The eikonalized and unitarized amplitudes exhibit a vanishingly small rho-parameter, and a slope parameter fixed by twice the closed string slope. The results for the differential and total cross sections are compared to the empirical results reported recently by the TOTEM collaboration.