Quirks at the Tevatron and Beyond

Abstract

We consider the physics and collider phenomenology of quirks that transform nontrivially under QCD color, SU(2)_W as well as an SU(N)_{ic} infracolor group. Our main motivation is to show that the recent Wjj excess observed by CDF naturally arises in quirky models. The basic pattern is that several different quirky states can be produced, some of which beta-decay during or after spin-down, leaving the lightest electrically neutral quirks to hadronize into a meson that subsequently decays into gluon jets. We analyze LEP II, Tevatron, UA2, and electroweak precision constraints, identifying the simplest viable models: scalar quirks ("squirks") transforming as color triplets, SU(2)_W triplets and singlets, all with vanishing hypercharge. We calculate production cross sections, weak decay, spin-down, meson decay rates, and estimate efficiencies. The novel features of our quirky model includes: quirkonium decay proceeds into a pair of gluon jets, without a b-jet component; there is essentially no associated Zjj or gamma+jj signal; and there are potentially new (parameter-dependent) contributions to dijet production, multi-W production plus jets, W+gamma, gamma+gamma resonance signals, and monojet signals. There may be either underlying event from low energy QCD deposition resulting from quirky spin-down, and/or qualitatively modified event kinematics from infraglueball emission.

14 pages, 6 figures

References in corpus (25)

• Echoes of a Hidden Valley at Hadron Colliders
• Phenomenology of Hidden Valleys at Hadron Colliders
• Invariant Mass Distribution of Jet Pairs Produced in Association with a W boson in ppbar Collisions at sqrt(s) = 1.96 TeV
• Light Z' Bosons at the Tevatron
• No like-sign tops at Tevatron: Constraints on extended models and implications for the t tbar asymmetry
• Signals of New Physics in the Underlying Event
• Bounds on an anomalous dijet resonance in W+jets production in ppbar collisions at sqrt{s} =1.96 TeV
• Ultrasoft contribution to quarkonium production and annihilation
• Baryonic Z' Explanation for the CDF Wjj Excess
• The Quirky Collider Signals of Folded Supersymmetry
• Diphoton decays of stoponium at the Large Hadron Collider
• Technicolor at the Tevatron
• Stringy origin of Tevatron Wjj anomaly
• Search for Large Extra Dimensions in the Diphoton Final State at the Large Hadron Collider
• New Color-Octet Vector Boson Revisit
• A Z' Model for the CDF Dijet Anomaly
• Chiral Quirkonium Decays
• Phenomenology of iQuarkonium
• Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF
• Radiative corrections to stoponium annihilation decays
• Quirks in supersymmetry with gauge coupling unification
• An Explanation of the CDF Dijet Anomaly within a $U(1{)}_X$ Stueckelberg Extension
• Search for new fermions ("quirks") at the Fermilab Tevatron Collider
• Direct detection and CMB constraints on light DM scenario of top quark asymmetry and dijet excess at Tevatron
• NLO predictions for a lepton, missing transverse momentum and dijets at the Tevatron

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• Thermal Dark Matter from a Confining Sector
• Higgs Underproduction at the LHC
• Dark Mesons at the LHC
• Towards a No-Lose Theorem for Naturalness
• Data-driven Model-independent Searches for Long-lived Particles at the LHC
• Light Hidden Mesons through the Z Portal
• Z'-gauge Bosons as Harbingers of Low Mass Strings
• Minimal Neutral Naturalness Model
• Constraining Quirky Tracks with Conventional Searches
• Effective Theories of Dark Mesons with Custodial Symmetry
• The quirk signal at FASER and FASER 2
• Displaced Vertices from Hidden Glue
• Discovering Quirks through Timing at FASER and Future Forward Experiments at the LHC
• The quirk trajectory
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• Testing the Technicolor Interpretation of the CDF Dijet Excess at the 8-TeV LHC
• A Solution to the mu/Bmu Problem in Gauge Mediation with Hidden Gauge Symmetry
• Constraints on 750 GeV colorless Q-onia from running couplings
• What the Tevatron Found?
• Testing CDF's Dijet Excess and Technicolor at the LHC
• Testing the Technicolor Interpretation of CDF's Dijet Excess at the LHC
• Visible Collider Signals of Natural Quirks
• Quirk SUEP
• Strong, weak and flavor scalar triplets for the CDF Wjj anomaly
• Review of Neutral Naturalness
• Stopping Dark Mesons in Their Tracks with Long-Lived Particle and Resonant Signatures
• LHC Test of CDF $Wjj$ anomaly