Forward physics at the LHC: from the structure of the Pomeron to the search for $\gamma$-induced resonances

TL;DR

This paper discusses future LHC measurements on the Pomeron's structure, searches for gamma-induced resonances, and explores a potential new particle decaying into photon pairs around 750 GeV.

Contribution

It introduces new experimental strategies for studying the Pomeron and searches for anomalous gamma couplings, including a possible interpretation of a 750 GeV diphoton resonance.

Findings

Potential evidence for a new particle at 750 GeV decaying into two photons

Enhanced understanding of the Pomeron structure through future measurements

Constraints on quartic gamma gamma gamma gamma couplings

Abstract

We describe some of the future measurements to be performed by the CMS, TOTEM and ATLAS collaborations on hard diffraction in order to understand better the structure of the Pomeron. We also describe the prospects concerning the search for quartic $\gamma \gamma \gamma \gamma$ anomalous couplings and discuss a possible interpretation for the existence of a new particle decaying into two photons at a mass of about 750 GeV.