Vector bosons escaping from the brane: $e^+e^- \to \gamma +$ nothing

TL;DR

This paper explores the potential for detecting extra-dimensional physics through the process e+e- → gamma + nothing, comparing predictions from RS2-n and ADD models with Standard Model backgrounds.

Contribution

It introduces phenomenological predictions for photon plus missing energy signals from extra dimensions in RS2-n and ADD models, analyzing their distinguishability from Standard Model backgrounds.

Findings

RS2-n predicts observable photon + missing energy signals at high energies.

Comparison shows differences between RS2-n, ADD, and Standard Model backgrounds.

Potential for collider experiments to detect extra-dimensional effects.

Abstract

We consider phenomenological consequences of RS2-n model with infinite extra dimension, namely, the production, in high energy collisions, of a photon or Z-boson escaping from our brane in association with a photon remaining on the brane. This would show up as process $e^+e^-\rightarrow \gamma +$nothing. We compare the signal with the Standard Model background coming from $e^+e^- \rightarrow \gamma \bar{\nu} \nu$. We also make a comparison with $e^+e^-\rightarrow \gamma +$nothing in the ADD model.