The Color Discriminant Variable and Scalar Diquarks at the LHC
arXiv:1507.06676 · doi:10.1103/PhysRevD.92.075020
Abstract
The LHC is actively searching for narrow dijet resonances corresponding to physics beyond the Standard Model. Among the many resonances that have been postulated (e.g., colored vectors, scalars, and fermions) one that would have a particularly large production rate at the LHC would be a scalar diquark produced in the s-channel via fusion of two valence quarks. In previous work, we introduced a color discriminant variable that distinguishes among various dijet resonances, drawing on measurements of the dijet resonance mass, total decay width and production cross-section. Here, we show that this model-independent method applies well to color-triplet and color-sextet scalar diquarks, distinguishing them clearly from other candidate resonances. We also introduce a more transparent theoretical formulation of the color discriminant variable that highlights its relationship to the branching ratios of the resonance into incoming and outgoing partons and to the properties of those partons. While the original description of the color discriminant variable remains convenient for phenomenological use upon discovery of a new resonance, the new formulation makes it easier to predict the value of the variable for a given class of resonance.
arXiv comment22 pages, 11 pdf figures. One reference added, one updated. arXiv admin note: text overlap with arXiv:1406.2003
References in corpus (51)
- New parton distributions for collider physics
- The Physics of Heavy Z' Gauge Bosons
- Strong Dynamics and Electroweak Symmetry Breaking
- Topcolor Assisted Technicolor
- The Phenomenology of Extra Neutral Gauge Bosons
- Search for new particles decaying into dijets in proton-antiproton collisions at sqrt(s) = 1.96 TeV
- Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
- Theory and Phenomenology of an Exceptional Supersymmetric Standard Model
- Top Quarks, Axigluons and Charge Asymmetries at Hadron Colliders
- Seeing in Color: Jet Superstructure
- Axigluon as Possible Explanation for Forward-Backward Asymmetry
- Color-flow decomposition of QCD amplitudes
- A Model of Strong Flavor Dynamics for the Top Quark
- Search for Dijet Resonances in 7 TeV pp Collisions at CMS
- Search for New Particles in Two-Jet Final States in 7 TeV Proton-Proton Collisions with the ATLAS Detector at the LHC
- Colored Resonant Signals at the LHC: Largest Rate and Simplest Topology
- Topflavor: A Separate SU(2) for the Third Family
- Search for New Particles Decaying to Dijets at CDF
- ATLAS search for new phenomena in dijet mass and angular distributions using pp collisions at sqrt(s)=7 TeV
- A Heavy Top Quark and the Vertex in Non-Commuting Extended Technicolor
- New Strong Interactons at the Tevatron ?
- Coloron Phenomenology
- Search for New Physics in the Dijet Mass Distribution using 1 fb^-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector
- Constraining heavy colored resonances from top-antitop quark events
- LHC Predictions from a Tevatron Anomaly in the Top Quark Forward-Backward Asymmetry
- Theory and Phenomenology of Exotic Isosinglet Quarks and Squarks
- Explaining the t-tbar asymmetry with a light axigluon
- Flavourful Production at Hadron Colliders
- Searches for Dijet Resonances at Hadron Colliders
- Axigluons cannot explain the observed top quark forward-backward asymmetry
- The Collider Phenomenology of Technihadrons in the Technicolor Straw Man Model
- Massive Color-Octet Bosons: Bounds on Effects in Top-Quark Pair Production
- Color Sextet Scalars at the CERN Large Hadron Collider
- Search for New Particles in the Two-Jet Decay Channel with the D0 Detector
- Search for New Particles Decaying to Dijets in p-pbar Collisions at sqrt(s)=1.8 TeV
- Collider Implications of Kaluza-Klein Excitations of the Gluons
- QCD Corrections to Scalar Diquark Production at Hadron Colliders
- Scalar Representations and Minimal Flavor Violation
- Color Sextet Scalars in Early LHC Experiments
- Diquark Higgs at LHC
- Supermodels for early LHC
- QCD in the Color-Flow Representation
- Hadron Collider Production of Massive Color-Octet Vector Bosons at Next-to-Leading Order
- Distinguishing Di-jet Resonances at the LHC
- Probing the Exotic Particle Content Beyond the Standard Model
- Resonant production of diquarks at high energy pp, ep and e+e- colliders
- Boosted Multijet Resonances and New Color-Flow Variables
- Color Triplet Diquarks at the LHC
- Simulation of Sextet Diquark Production
- Distinguishing Color-Octet and Color-Singlet Resonances at the Large Hadron Collider
- Distinguishing Flavor Non-universal Colorons from Z' Bosons at the LHC
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- Baryon Number and Lepton Universality Violation in Leptoquark and Diquark Models
- Di-higgs enhancement by neutral scalar as probe of new colored sector
- LHC Constraints on Scalar Diquarks
- Electric Dipole Moments from Post-Sphaleron Baryogenesis
- Mono-jet Signatures of Gluphilic Scalar Dark Matter
- Colorphilic Spin-2 Resonances in the LHC Dijet Channel
- Ultraheavy resonances at the LHC: beyond the QCD background
- Identifying the Quantum Properties of Hadronic Resonances using Machine Learning
- Measuring Electroweak Quantum Numbers of Color Sextet Resonances at the LHC
- LHC probes of the 10 TeV scale
- Color Discriminant Variable to Separate Dijet Resonances at the LHC