Probing a novel neutral heavy gauge boson within the mono-Z$^{\prime}$ portal at the HL-LHC

TL;DR

This paper explores the potential detection of a new neutral heavy gauge boson via the mono-Z' portal at the HL-LHC, using simulations to set limits on new physics parameters in the absence of signals.

Contribution

It introduces a novel approach to probing a neutral heavy gauge boson through the mono-Z' channel at the HL-LHC within the EFT framework.

Findings

Set upper limits on Z' mass and EFT cutoff scale.

Simulated potential signatures of new physics at 14 TeV.

Provided constraints in the absence of observed signals.

Abstract

This study examines the production of dark matter events alongside a Z$^{\prime}$ boson decaying through leptonic channels in simulated proton-proton collisions at the Large Hadron Collider. The analysis focuses on collisions at $\sqrt{s}$ = 14 TeV under high-luminosity conditions, corresponding to an integrated luminosity of 1000 fb$^{-1}$. Using Monte Carlo simulations interpreted within the Effective Field Theory (EFT) framework, the work investigates potential signatures of new physics. In the absence of such phenomena, upper limits are placed on critical EFT parameters, including the theory's cutoff scale and the mass of the Z$^{\prime}$ boson.