Doubly resonant WW plus jet signatures at the LHC

TL;DR

This paper explores the potential to detect doubly resonant signals from beyond Standard Model particles at the LHC, focusing on specific decay chains involving color-octet states and their experimental signatures.

Contribution

It introduces a novel analysis of doubly resonant signals from weak-singlet color-octet vector and scalar states, proposing specific search strategies for the LHC.

Findings

Potential to exclude or discover signals at 8 TeV LHC for various masses

Identification of a promising search channel with boosted W-tagged jets

Analysis of decay chains involving  and W/Z bosons

Abstract

We present search prospects and phenomenology of doubly resonant signals that come from the decay of a neutral weak-singlet color-octet vector state \omega_8 into a lighter weak-triplet color-octet scalar \pi_8, which can arise in several theories beyond the Standard Model. Taking m_{\omega_8}-m_{\pi_8}>m_W, we demonstrate an analysis of the signals pp \to \omega_8 \to \pi^\pm_8 W^\mp (\pi^0_8 Z) \to g W^\pm W^\mp (g Z Z). The present 8 TeV LHC run is found to have the potential to exclude or discover the signal for a range of masses and parameters. The preferred search channel has a boosted W-tagged jet forming a resonance with a second hard jet, in association with a lepton and missing energy.