# Searching for odderon in exclusive reactions: $p p \to p p p {\bar p}$, $p p \to p p \phi \phi$ and $p p \to p p \phi$

## TL;DR

This paper explores the potential of three exclusive proton-proton reactions to detect odderon exchange, analyzing past data and predicting outcomes at the LHC to clarify the existence of C=-1 exchanges.

## Contribution

It introduces a formalism for analyzing three specific exclusive reactions as probes for odderon exchange and provides predictions for LHC experiments based on past measurements.

## Key findings

- Evidence for C=-1 exchanges at high energies.
- Predictions for odderon signals at the LHC.
- Analysis of past WA102 data for future experiments.

## Abstract

There seem to be recently an evidence for $C =$ -1 exchanges in $p p$ and $p \bar p$ elastic scattering at high energies. The analysis there is difficult as the two processes were not measured at the same (large) energies. Here we discuss three different exclusive processes given in the title as a possible source of information for odderon exchange. A sketch of the formalism is presented for each of the reactions. We consider low energy processes measured in the past by the WA102 collaboration and try to make predictions for the LHC. We discuss possible evidences at the low energies and try to make suggestions for the LHC.