Modeling missing transverse energy in V+jets at CERN LHC

TL;DR

This paper presents a data-driven method to model the detector response for missing transverse energy in V+jets events at the LHC, aiding new physics searches with minimal reliance on simulations.

Contribution

It introduces a novel approach using multi-jet QCD events to estimate instrumental effects in high missing energy regions for early LHC data.

Findings

Effective modeling of missing transverse energy backgrounds

Reduced dependence on simulation for early data analysis

Applicable to V+jets processes involving Z, gamma, or W bosons

Abstract

I discuss a method to model the instrumental response of the CMS and ATLAS detectors at high transverse missing energies to dominant standard model V+jets backgrounds, where V is a Z, gamma or W, using multi-jet QCD events. The method is developed for new physics searches in early data at the Large Hadron Collider (LHC) with minimal recourse to simulation.