Boosting low-mass hadronic resonances

Abstract

Searches for new hadronic resonances typically focus on high-mass spectra, due to overwhelming QCD backgrounds and detector trigger rates. We present a study of searches for relatively low-mass hadronic resonances at the LHC in the case that the resonance is boosted by recoiling against a well-measured high-$p_{\text{T}}$ probe such as a muon, photon or jet. The hadronic decay of the resonance is then reconstructed either as a single large-radius jet or as a resolved pair of standard narrow-radius jets, balanced in transverse momentum to the probe. We show that the existing 2015 LHC dataset of $pp$ collisions with $\int \mathcal{L}dt=4{\mathrm{fb}}^{-1}$ should already have powerful sensitivity to a generic $Z^{\prime }$ model which couples only to quarks, for $Z^{\prime }$ masses ranging from 20-500 GeV/c${}^2$.

References in corpus (3)

• PYTHIA 6.4 Physics and Manual
• Event generation with SHERPA 1.1
• Constraints on Dark Matter from Colliders

Cited by in corpus (7)

• Decorrelated Jet Substructure Tagging using Adversarial Neural Networks
• Search for light resonances decaying to boosted quark pairs and produced in association with a photon or a jet in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Search for low-mass resonances decaying into two jets and produced in association with a photon using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Higgs Boson Decay to Light Jets at the LHC
• Particle Convolution for High Energy Physics
• Dijet and electroweak limits on a $Z^{\prime }$ boson coupled to quarks
• The dark side of the proton