On semi-exclusive measurement of $\gamma\gamma\to\gamma\gamma$ scattering

TL;DR

This paper investigates the semi-exclusive measurement of photon-photon scattering at high energies, considering different production modes and using simulations to analyze potential signals and backgrounds, including a hypothetical resonance.

Contribution

It introduces a detailed study of semi-exclusive $ o o$ photon scattering with forward proton detection, including simulations for a potential 750 GeV resonance signal.

Findings

Semi-exclusive measurement techniques can effectively probe $ o o$ photon scattering.

Simulations show distinguishable signals for the hypothetical resonance.

Background processes are manageable with forward proton detection.

Abstract

The two-photon production of photon pairs, i.e. the $\gamma\gamma\to\gamma\gamma$ process, is studied. Different production modes regarding the elastic or inelastic coupling of the intermediate-state photons to the protons are considered. The semi-exclusive measurement, where one intact proton is registered by a dedicated forward proton detector, is discussed. As an example, the signal and background simulations are performed for the $\gamma\gamma\to\gamma\gamma$ process mediated by the hypothetical 750 GeV resonance.