Production of a KK-graviton and a Vector Boson in ADD Model via Gluon fusion

TL;DR

This paper investigates the production of KK-gravitons and vector bosons via gluon fusion in large extra-dimension models, providing calculations relevant for LHC experiments and addressing theoretical issues like anomalies.

Contribution

It presents the first detailed calculation of KK-graviton and vector boson production via gluon fusion in ADD models, including loop diagrams and anomaly considerations.

Findings

Process is ultraviolet finite at leading order

Provides cross-section estimates for LHC energies

Discusses anomaly and heavy quark decoupling issues

Abstract

In the models with large extra-dimensions, we examine the production of a vector boson (\gamma / Z) in association with the Kaluza-Klein (KK) modes of the graviton via gluon fusion. At the leading order, the process takes place through quark-loop box and triangle diagrams and it is ultraviolate finite. We report the results for the LHC. We also discuss the issues of anomaly and decoupling of heavy quarks in the amplitude.