Distinguishing Di-jet Resonances at the LHC
arXiv:1412.3094 · doi:10.1103/PhysRevD.91.055019
Abstract
Anticipating that a di-jet resonance could be discovered at the 14 TeV LHC, we present two different strategies to reveal the nature of such a particle; in particular to discern whether it is a quark-antiquark (qqbar), quark-gluon (qg), or gluon-gluon (gg) resonance. The first method relies on the color discriminant variable, which can be calculated at the LHC from the measurements of the di-jet signal cross section, the resonance mass and the resonance width. Including estimated statistical uncertainties and experimental resolution, we show that a qg excited quark resonance can be efficiently distinguished from either a qqbar coloron or a gg color-octet scalar using the color discriminant variable at LHC-14. The second strategy is based on the study of the energy profiles of the two leading jets in the di-jet channel. Including statistical uncertainties in the signal and the QCD backgrounds, we show that one can distinguish, in a model-independent way, between gg, qg, and qqbar resonances; an evaluation of systematic uncertainties in the measurement of the jet energy profile will require a detailed detector study once sufficient 14 TeV di-jet data is in hand.
arXiv comment25 pages, 17 figures; references added. Minor clarifications and footnote(s) added, based on referee suggestions
References in corpus (45)
- A Brief Introduction to PYTHIA 8.1
- FastJet user manual
- Parton distributions for the LHC
- New Generation of Parton Distributions with Uncertainties from Global QCD Analysis
- MadGraph 5 : Going Beyond
- New parton distributions for collider physics
- FeynRules - Feynman rules made easy
- Color-octet quarkonia production
- Jet Substructure at the Tevatron and LHC: New results, new tools, new benchmarks
- Search for new phenomena in the dijet mass distribution using collision data at TeV with the ATLAS detector
- Gaining (Mutual) Information about Quark/Gluon Discrimination
- Quark and Gluon Tagging at the LHC
- Seeing in Color: Jet Superstructure
- Large Jets at Hadron Colliders at Order : A Look Inside
- Colored Resonant Signals at the LHC: Largest Rate and Simplest Topology
- New Strong Interactons at the Tevatron ?
- Coloron Phenomenology
- Coupling--mass mapping of di-jet peak searches
- Study of Jet Shapes in Inclusive Jet Production in ppbar Collisions at sqrt{s} = 1.96 TeV
- Study of Jet Shapes in Inclusive Jet Production in pp Collisions at sqrt(s) = 7 TeV using the ATLAS Detector
- Heavy octets and Tevatron signals with three or four b jets
- Searches for Dijet Resonances at Hadron Colliders
- Shape, transverse size, and charged-hadron multiplicity of jets in pp collisions at sqrt(s) = 7 TeV
- Hunting composite vector resonances at the LHC: naturalness facing data
- Heavy-light decay topologies as a new strategy to discover a heavy gluon
- QCD resummation for jet substructures
- Pure Samples of Quark and Gluon Jets at the LHC
- Strong Signatures of Right-Handed Compositeness
- Hadron Collider Production of Massive Color-Octet Vector Bosons at Next-to-Leading Order
- Search for quark contact interactions and extra spatial dimensions using dijet angular distributions in proton-proton collisions at sqrt(s) = 8 TeV
- A Flavorful Top-Coloron Model
- QCD resummation for light-particle jets
- New Particles Working Group Report of the Snowmass 2013 Community Summer Study
- Chiral color symmetry and possible -boson effects at the Tevatron and LHC
- New W-prime signals at the LHC
- The Elusive Gluon
- Di-jet resonances at future hadron colliders: A Snowmass whitepaper
- Gauge Invariance, Color-Octet Vector Resonances and Double Technieta Production at the Tevatron
- Same-Sign Dileptons from Colored Scalars in the Flavorful Top-Coloron Model
- Two-gluon coupling and collider phenomenology of color-octet technirho mesons
- Distinguishing Color-Octet and Color-Singlet Resonances at the Large Hadron Collider
- Identifying dark matter interactions in monojet searches
- Distinguishing Flavor Non-universal Colorons from Z' Bosons at the LHC
- Discriminating Higgs production mechanisms using jet energy profiles
- Identification of Parton Pairs in a Dijet Event and Investigation of Its Effects on Dijet Resonance Search
Cited by in corpus (22)
- Search for narrow and broad dijet resonances in proton-proton collisions at 13 TeV and constraints on dark matter mediators and other new particles
- Search for high mass dijet resonances with a new background prediction method in proton-proton collisions at 13 TeV
- Search for dijet resonances in proton-proton collisions at sqrt(s) = 13 TeV and constraints on dark matter and other models
- Heavy resonances at energy-frontier hadron colliders
- Phenomenology of unusual top partners in composite Higgs models
- Exploring color-octet scalar parameter space in minimal -symmetric models
- The Color Discriminant Variable and Scalar Diquarks at the LHC
- Renormalizable SU(5) Completions of a Zee-type Neutrino Mass Model
- Hadron Collider Searches for Diboson Resonances
- Boosted Top quark polarization
- Leptophobic boson signals with leptons, jets and missing energy
- Broadening the Reach of Simplified Limits on Resonances at the LHC
- Color-octet scalars in Dirac gaugino models with broken symmetry
- signatures through the lens of color-octet scalars
- Minimal Dilaton Model and the Diphoton Excess
- Simplified Limits on Resonances at the LHC
- Colorphilic Spin-2 Resonances in the LHC Dijet Channel
- Resonance contribution of scalar color octet to production at the LHC in the minimal four color quark-lepton symmetry model
- Improving Heavy Dijet Resonance Searches Using Jet Substructure at the LHC
- Mixed gluinos and sgluons from a new SU(3) gauge group
- Performance and calibration of quark/gluon-jet taggers using 140 fb of collisions at TeV with the ATLAS detector
- Color Discriminant Variable to Separate Dijet Resonances at the LHC