Production of a Z boson and a photon via a Randall-Sundrum-type graviton at the Large Hadron Collider

TL;DR

This paper investigates the potential to observe a Z boson and photon produced via a Randall-Sundrum graviton resonance at the LHC, finding the production rate too small for practical detection.

Contribution

It extends previous models by calculating the one-loop resonant production of Z and photon, assessing its observability in collider experiments.

Findings

Production rate is negligible in conservative models.

Detection is very challenging even with high luminosity.

Less conservative models still predict very low observability.

Abstract

In extra dimensional models with Kaluza-Klein graviton states that are well separated in mass, such states may be observed as resonances in collider experiments. We extend previous works on such scenarios by considering the one-loop resonant production of a Z boson in association with a photon. We find the production rate to be negligible in conservative scenarios, and sufficiently small for observation to be very difficult even for reasonable luminosity in less conservative scenarios.