Computer modeling of properties of Kaluza-Klein particles and their searches at the LHC

TL;DR

This paper models Kaluza-Klein particles within extra dimension theories, calculating production cross sections and decay processes at the LHC using Pythia8.2, revealing patterns in graviton spectra across different models and energies.

Contribution

It provides detailed computational predictions of Kaluza-Klein particle production and decay at the LHC for various extra dimension models, including the Randall-Sundrum scenario.

Findings

Calculated cross sections for Kaluza-Klein particles at LHC energies.

Identified periodicity in graviton mass spectrum behavior.

Estimated graviton production and decay probabilities at different energies.

Abstract

The Standard Model problems lead to the new theories of extra dimensions: Randall-Sundrum model, Arkani-Hamed-Dimopoulos-Dvali model and TeV$^{-1}$ model. In the framework of these models with the help of computer program Pythia8.2 were calculated the production cross sections for Kaluza-Klein particles at various energies at the LHC. The generation of monojet events from scalar graviton emission was considered for number of extra dimensions, n=2, 4, 6, for the energy at the LHC 14 TeV. Also are studied the graviton production processes through the gluon-gluon, quark-gluon and quark-quark fusion processes and found some periodicity in the behavior of the graviton mass spectrum. Within Randall-Sundrum scenario were calculated $\sigma\times$ Br for production process of massive graviton, gg $\rightarrow$ $G^{*}$, and the most probable processes of graviton decay at 13 TeV, 14 TeV and 100 TeV.