Collider signatures of the SO(5) x U(1) gauge-Higgs unification

Abstract

Collider signatures of the $SO(5)\times U(1)$ gauge-Higgs unification model in the Randall-Sundrum warped space are explored. Gauge couplings of quarks and leptons receive small corrections from the fifth dimension whose effects are tested by the precision data. It is found that the forward-backward asymmetries in $e^{+}{e}^{-}$ collisions on the $Z$ pole are well explained in a wide range of the warp factor $z_L$, but the model is consistent with the branching fractions of $Z$ decay only for large $z_L \simg 10^{15}$. Kaluza-Klein (KK) spectra of gauge bosons, quarks, and leptons as well as gauge and Higgs couplings of low-lying KK excited states are determined. Right-handed quarks and leptons have larger couplings to the KK gauge bosons than left-handed ones. Production rates of Higgs bosons and KK states at Tevatron, LHC and ILC are evaluated. The first KK $Z$ has a mass 1130 GeV with a width 422 GeV for $z_L=10^{15}$. The current limit on the $Z^{\prime }$ production at Tevatron and LHC indicates $z_L>10^{15}$. A large effect of parity violation appears in the difference between the rapidity distributions of $e^{+}$ and $e^{-}$ in the decay of the first KK $Z$. The first KK gauge bosons decay into light and heavy quarks evenly.

45 pages, 6 figures. Contributions from the first KK photon are taken into account

References in corpus (23)

• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• A custodial symmetry for Zbb
• Updated Values of Running Quark and Lepton Masses
• Beyond the Minimal Composite Higgs Model
• Observing the Dark Scalar Doublet and its Impact on the Standard-Model Higgs Boson at Colliders
• Top Quarks, Axigluons and Charge Asymmetries at Hadron Colliders
• Gauge-Higgs Unification and Radiative Electroweak Symmetry Breaking in Warped Extra Dimensions
• Search for Resonances in the Dilepton Mass Distribution in pp Collisions at sqrt(s) = 7 TeV
• Collider Phenomenology of Gauge-Higgs Unification Scenarios in Warped Extra Dimensions
• Search for a heavy neutral gauge boson in the dielectron channel with 5.4 fb-1 of ppbar collisions at sqrt(s) = 1.96 TeV
• Anomalous Higgs Couplings in the $SO(5)\times U(1{)}_{B-L}$ Gauge-Higgs Unification in Warped Spacetime
• TASI Lectures on a Holographic View of Beyond the Standard Model Physics
• WWZ, WWH, and ZZH Couplings in the Dynamical Gauge-Higgs Unification in the Warped Spacetime
• Finite Anomalous Magnetic Moment in the Gauge-Higgs Unification
• Effective theories of gauge-Higgs unification models in warped spacetime
• Calculable One-Loop Contributions to S and T Parameters in the Gauge-Higgs Unification
• Neutron Electric Dipole Moment in the Gauge-Higgs Unification
• More on the Finiteness of Anomalous Magnetic Moment in the Gauge-Higgs Unification
• H parity and the stable Higgs boson in the SO(5) x U(1) gauge-Higgs unification
• Modulus stabilization and IR-brane kinetic terms in gauge-Higgs unification
• Dirichlet Higgs as radion stabilizer in warped compactification
• Radion and Higgs masses in gauge-Higgs unification
• Observing Higgs Dark Matter at the CERN LHC

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• Polyakov loops and the Hosotani mechanism on the lattice
• Novel universality and Higgs decay H -> γγ, gg in the SO(5) x U(1) gauge-Higgs unification
• Distinct signals of the gauge-Higgs unification in $e^{+}{e}^{-}$ collider experiments
• LHC signals of the $SO(5)\times U(1)$ gauge-Higgs unification
• Gauge-Higgs EW and Grand Unification
• Collider signals of $W^{\prime }$ and $Z^{\prime }$ bosons in the gauge-Higgs unification
• Dark matter in the $SO(5)\times U(1)$ gauge-Higgs unification
• SUSY breaking scales in the gauge-Higgs unification
• Constraints on gauge-Higgs unification models at the LHC
• Toward Realistic Gauge-Higgs Grand Unification
• QCD parity violation at LHC in warped extra dimension
• High-energy suppression of the Higgsstrahlung cross-section in the Minimal Composite Higgs Model