Horndeski/Galileon in High Energy Collisions

TL;DR

This paper explores the potential influence of Horndeski/Galileon scalar fields in high energy particle collisions, proposing mechanisms for their effects and constraining model parameters based on experimental considerations.

Contribution

It identifies the John term from the Fab Four subclass as the relevant Galileon interaction in high energy collisions and establishes constraints on its coupling constant.

Findings

Galileon fields can influence particle collisions despite no direct Standard Model interactions.

The John term is singled out as the key Galileon interaction in this context.

Constraints on the model coupling constant are derived from collision considerations.

Abstract

Horndeski/Galileons may be considered as a proper generalization of General Relativity in high energy regime. Thus one may search for manifestation of Galileons interaction in collision experiments. In this paper we give arguments supporting this thesis. Galileon scalar field do not interact with matter via Standard Model interactions, we discuss a mechanism that allows Galileons to have influence on particle collisions. We give reasons to narrow the whole class of Horndeski/Galileons models to one particular term - John term from Fab Four subclass - for this particular issue. We were able to establish the constraint on the model coupling constant.