T-Anomaly Induced LHC Signals

Abstract

$\mathcal{T}$-parity in the Little Higgs model could be violated by anomalies that allow the lightest $\mathcal{T}$-odd $A_H$ to decay into $ZZ$ and $W^{+}{W}^{-}$. We analyze these anomaly induced decays and the two-particle and the three-particle decay modes of other heavy quarks and bosons in this model which yield unique Large Hadron Collider (LHC) signals with fully reconstructable events. $\mathcal{T}$-odd quarks in the Little Higgs model are nearly degenerate in mass and they decay by almost identical processes; however, members of the heavy Higgs triplet follow distinct decay modes. The branching fractions of three-body decays increase with the global symmetry-breaking energy scale $f$ and are found to be at the level of a few percent in heavy quark decays while they can reach up to 10% for heavy bosons.

17 pages, 7 figures, 2 tables; Label in Fig.1 corrected, references added; Graphic quality of figures improved

References in corpus (25)

• Electroweak symmetry breaking from dimensional deconstruction
• The Littlest Higgs
• TeV Symmetry and the Little Hierarchy Problem
• Phenomenology of the Little Higgs Model
• Phenomenology of the Littlest Higgs with T-Parity
• Big Corrections from a Little Higgs
• T Parity and the Littlest Higgs
• Variations of Little Higgs Models and their Electroweak Constraints
• Electroweak Precision Constraints on the Littlest Higgs Model with T Parity
• Effective Theory Analysis of Precision Electroweak Data
• Constraining the Littlest Higgs
• One-loop Radiative Corrections to the rho Parameter in the Littlest Higgs Model
• The Low-Energy Structure of Little Higgs Models
• Top Partners in Little Higgs Theories with T-parity
• Loop induced decays of the Little Higgs: H --> gg, gamma gamma
• Phenomenology of Littlest Higgs Model with T-parity: including effects of T-odd fermions
• Smoking-gun signatures of little Higgs models
• Hunting for the Top Partner in the Littlest Higgs Model with T-parity at the LHC
• Novel Collider Signatures for Little Higgs Dark Matter Models
• Implications for New Physics from Fine-Tuning Arguments: II. Little Higgs Models
• Topological Physics of Little Higgs Bosons
• Phenomenology of Mirror Fermions in the Littlest Higgs Model with T-Parity
• The Rare Top Decays $t\to b{W}^{+}Z$ and $t\to c{W}^{+}{W}^{-}$
• Finite Width Effects in Top Quark Decays
• Associated production of a single heavy T-quark in the littlest and simplest little Higgs models

Cited by in corpus (24)

• Spin determination of single-produced resonances at hadron colliders
• Physics at the e+ e- Linear Collider
• Physics searches at the LHC
• Landau-Yang Theorem and Decays of a Z' Boson into Two Z Bosons
• Spin Dependence of Dark Matter Scattering
• The "Top Priority" at the LHC
• Cosmological Constraints on Decaying Dark Matter
• A Little Higgs Model with Exact Dark Matter Parity
• Higgs boson productions at LHC as a probe of different littlest Higgs models with T-parity
• Multi-Photon Signals from Composite Models at LHC
• Same-sign trileptons and four-leptons as signatures of new physics at the Large Hadron Collider
• Distinguishing the Littlest Higgs model with T-parity from supersymmetry at the LHC using trileptons
• The Little Skyrmion: New Dark Matter for Little Higgs Models
• Discrimination of low missing energy look-alikes at the LHC
• Dilepton and Four-Lepton Signals at the LHC in the Littlest Higgs Model with T-parity Violation
• Same-sign trileptons at the LHC: a window to lepton-number violating supersymmetry
• tbW vertex in the Littlest Higgs Model with T-parity
• Associated production of the scalars and new gauge bosons from a little Higgs model at the LHC
• Topological Interactions in the Higgsless Model at the LHC
• Decays of the Littlest Higgs Z_H and the Onset of Strong Dynamics
• Pair production of the T-odd leptons at the LHC
• Photon-induced production of the mirror quarks from the $LHT$ model at the $LHC$
• Topological physics in the standard model and beyond
• Not T-parity but C-parity