# Colliding Pomerons

## TL;DR

This paper discusses the properties of Pomeron interactions in high-energy physics, predicting distinctive particle spectra and potential glueball observations that can shed light on the nature of the soft Pomeron.

## Contribution

It proposes a comparative analysis of secondary particle spectra in Pomeron and proton interactions to explore the properties of the soft Pomeron and potential glueball signals.

## Key findings

- Larger transverse momenta expected in Pomeron interactions.
- Narrower multiplicity distributions due to fewer multiple interactions.
- Potential observation of glueballs in Pomeron fragmentation regions.

## Abstract

We recall the main properties of inclusive particle distributions expected for Pomeron-proton and Pomeron-Pomeron interactions. Due to the small size of the Pomeron we expect larger transverse momenta of secondaries and a smaller probability of Multiple Interactions, that is a narrower multiplicity distribution. We propose to compare the spectra of secondaries produced in the Pomeron and the proton interactions in terms of the Feynman $x_F$ variable. The main difference should be observed for a relatively large $x_F$, that is near the edge of rapidity gaps. Such data offer the opportunity to illuminate the properties of the `soft' or `Regge' Pomeron, which drives the minimum-bias type of events in high energy $pp$ interactions. Besides this, there should be a good opportunity to observe a glueball in the Pomeron fragmentation region.