Tracking New Physics at the LHC and beyond

Abstract

Heavy resonances are an integral part of many extensions of the Standard Model. The discovery of such heavy resonances are a primary goal at the LHC and future hadron colliders. When a particle with TeV-scale mass decays into electroweak-scale objects, these objects are highly boosted and their decay products are then strongly collimated, possibly to an extent that they cannot be resolved in the calorimeters of the detectors any more. We develop taggers for electroweak-scale resonances by combining the good energy resolution of the hadronic calorimeter with the superior spatial resolution of the tracking detector. Using track-based techniques we reconstruct heavy $W^{\prime }$ and $Z^{\prime }$ bosons and constrain the branching ratio of the rare Higgs boson decay $H\to ZA\to l^{+}{l}^{-}$ jets. The taggers show a good momentum-independent performance up to very large boosts. Using the proposed techniques will allow experiments at the LHC and a future hadron collider to significantly extend its reach in searches for heavy resonances.

23 pages, 16 figures

References in corpus (20)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Event generation with SHERPA 1.1
• Herwig++ Physics and Manual
• Jet substructure as a new Higgs search channel at the LHC
• Top-tagging: A Method for Identifying Boosted Hadronic Tops
• Techniques for improved heavy particle searches with jet substructure
• Strategies to Identify Boosted Tops
• Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
• Top Jets at the LHC
• Calculating the Charge of a Jet
• Jet Substructure Without Trees
• Search for physics beyond the standard model in events with two leptons, jets, and missing transverse momentum in pp collisions at sqrt(s) = 8 TeV
• Search for $W^{\prime }\to t\bar{b}$ in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Measuring collinear W emissions inside jets
• Electroweak Sudakov Logarithms and Real Gauge-Boson Radiation in the TeV Region
• Jet Substructure and the Search for Neutral Spin-One Resonances in Electroweak Boson Channels
• Search for a Heavy Neutral Particle Decaying to $e\mu$, $e\tau$, or $\mu \tau$ in $pp$ Collisions at $\sqrt{s}=8$ TeV with the ATLAS Detector
• How to Find a Hidden World at the Large Hadron Collider
• Tracking down hyper-boosted top quarks

Cited by in corpus (11)

• Jet Substructure at the Large Hadron Collider: A Review of Recent Advances in Theory and Machine Learning
• Parton Shower Uncertainties in Jet Substructure Analyses with Deep Neural Networks
• Quark-Gluon tagging with Shower Deconstruction: Unearthing dark matter and Higgs couplings
• Hunting the Flavon
• New Avenues to Heavy Right-handed Neutrinos with Pair Production at Hadronic Colliders
• Measuring the Top Yukawa Coupling at 100 TeV
• Resolving Boosted Jets with XCone
• Augmenting the diboson excess for Run 2
• Hadronic Calorimeter Shower Size: Challenges and Opportunities for Jet Substructure in the Superboosted Regime
• Measuring rare and exclusive Higgs boson decays into light resonances
• Jet observables and stops at 100 TeV collider