The Odderon at RHIC and LHC

TL;DR

This paper discusses methods to detect the Odderon, a fundamental yet elusive QCD object, at RHIC and LHC through differences in proton-proton and antiproton-proton scattering and precise measurements of elastic scattering amplitudes.

Contribution

It proposes experimental strategies using existing and future collider data to observe the Odderon, advancing the experimental verification of this fundamental QCD prediction.

Findings

Difference in differential cross-sections for p-p and p̄-p at high energy and moderate t

Potential detection of the Odderon with STAR and ATLAS experiments

Use of existing UA4/2 data to complement new measurements

Abstract

The Odderon remains an elusive object, 33 years after its invention. The Odderon is now a fundamental object in QCD and CGC and it has to be found experimentally if QCD and CGC are right. In the present talk, we show how to find it at RHIC and LHC. The most spectacular signature of the Odderon is the predicted difference between the differential cross-sections for proton-proton and antiproton-proton at high s and moderate t. This experiment can be done by using the STAR detector at RHIC and by combining these future data with the already present UA4/2 data. The Odderon could also be found by ATLAS experiment at LHC by performing a high-precision measurement of the real part of the hadron elastic scattering amplitude at small t.