Top FCNC searches at HL-LHC with the CMS experiment

TL;DR

This paper discusses the potential for detecting flavor-changing neutral current interactions in top quarks at the High Luminosity LHC using upgraded CMS detector simulations, aiming to explore rare processes at multi-TeV scales.

Contribution

It proposes a new search strategy for top quark FCNC interactions at HL-LHC based on detailed Monte Carlo simulations of the upgraded CMS detector.

Findings

Projected sensitivity to top FCNC interactions at HL-LHC.

Feasibility of detecting rare top quark processes with upgraded CMS.

Enhanced discovery potential for new physics in top sector.

Abstract

The Large Hadron Collider is the world's largest and highest center-of-mass energy particle accelerator. During the Phase I operation it is expected that the LHC operated at a centre-of-mass energy of 13 TeV will deliver to the CMS experiment total integrated luminosity of $\sim$300 fb$^{-1}$ till 2023. The High Luminosity LHC upgrade is expected to run at a centre-of-mass energy of 14 TeV and will allow ATLAS and CMS to collect integrated luminosities of the order of 300 fb$^{-1}$ per year, and up to 3000 fb$^{-1}$ during the HL-LHC projected lifetime of ten years. The large expected integrated luminosity enables the exploration of the multi-TeV scale by searches for particles with high masses as well as by investigation of processes with very low cross sections such as Flavor-Change Neutral Current interactions in top quark sector. In this report we present a proposal for the top quark FCNC searches at HL-LHC based on Monte-Carlo simulation of the upgraded CMS detector.