$\phi$-Lagrangian, a new scalar mediator for light-by-light scattering process

TL;DR

This paper proposes a new scalar mediator, the $$-Lagrangian, to explain light-by-light scattering observed in ultra-peripheral collisions, detailing its theoretical framework and potential detection in proton-proton collisions at the LHC.

Contribution

Introduction of the $$-Lagrangian as a novel scalar mediator for light-by-light scattering, including its interaction with the Higgs boson and simulation prospects for LHC collisions.

Findings

The $$-Lagrangian can describe light-by-light scattering in UPCs.

Simulation results suggest potential observation in proton-proton collisions.

The model links the new scalar to Higgs boson interactions.

Abstract

The $\phi$ scalar boson is a new mediator proposed to describe the direct light-by-light scattering observed recently in ultra-peripheral collisions (UPCs) with ATLAS detector where two photons interact directly to gives two photons in the final state. The proposed lagrangian present a description to the forbidden process. The description presented in this paper consist the interaction terms, the coupling to the Higgs boson to generate the mass for this new resonance and the simulation using proton proton in order to observe this process in other nominal LHC collisions, since the process is observed in heavy-ions collisions.