Novel universality and Higgs decay H -> γγ, gg in the SO(5) x U(1) gauge-Higgs unification

Abstract

The SO(5) x U(1) gauge-Higgs unification in the Randall-Sundrum warped space with the Higgs boson mass m_H=126 GeV is constructed. An universal relation is found between the Kaluza-Klein (KK) mass scale $m_{KK}$ and the Aharonov-Bohm (AB) phase ${\theta }_H$ in the fifth dimension; $m_{KK}\sim 1350GeV/(sin{\theta }_H{)}^{0.787}$. The cubic and quartic self-couplings of the Higgs boson become smaller than those in the standard model (SM), having universal dependence on ${\theta }_H$. The decay rates H -> γγ, gg are evaluated by summing contributions from KK towers. Corrections coming from KK excited states are finite and about 0.2% (2%) for ${\theta }_H=0.12(0.36)$, branching fractions of various decay modes of the Higgs boson remaining nearly the same as in the SM. The signal strengths of the Higgs decay modes relative to the SM are $\sim co{s}^2{\theta }_H$. The mass of the first KK $Z$ is predicted to be $5.9(2.4)$TeV for ${\theta }_H=0.12(0.36)$. We also point out the possible enhancement of $\Gamma (H->\gamma \gamma )$ due to the large $U(1{)}_X$ charge of new fermion multiplets.

15 pages, 4 figures, (v2) a comment on the diphoton decay rate is added

References in corpus (17)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Bare Higgs mass at Planck scale
• Pseudo-Goldstone Higgs Production via Gluon Fusion
• MSSM Higgs Bosons at The LHC
• Enhanced $h\to \gamma \gamma$ rate in MSSM singlet extensions
• Anomalous Higgs Couplings in the $SO(5)\times U(1{)}_{B-L}$ Gauge-Higgs Unification in Warped Spacetime
• Higgs boson decays to $\gamma \gamma$ and $Z\gamma$ in models with Higgs extensions
• Diphotons from Tetraphotons in the Decay of a 125 GeV Higgs at the LHC
• Vacuum Stability Constraints on the Enhancement of the Higgs to Diphoton Rate in the MSSM
• A search for high-mass resonances decaying to tau+tau- in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Enhanced Diphoton Signal of the Higgs Boson and the Muon g-2 in Gauge Mediation Models
• Gauge-Higgs Unification at LHC
• Higgs Uncovering Light Scalar Remnants of High Scale Matter Unification
• Effective theories of gauge-Higgs unification models in warped spacetime
• H parity and the stable Higgs boson in the SO(5) x U(1) gauge-Higgs unification
• Updated results for minimal dilaton model

Cited by in corpus (43)

• Gauge-Higgs Grand Unification
• Modified Higgs Sectors and NLO Associated Production
• Stau with Large Mass Difference and Enhancement of the Higgs to Diphoton Decay Rate in the MSSM
• Polyakov loops and the Hosotani mechanism on the lattice
• An effective gauge-Higgs operators analysis of new physics associated with the Higgs
• Distinct signals of the gauge-Higgs unification in $e^{+}{e}^{-}$ collider experiments
• Gauge Coupling Unification in Gauge-Higgs Grand Unification
• LHC signals of the $SO(5)\times U(1)$ gauge-Higgs unification
• CKM matrix and FCNC suppression in $SO(5)\times U(1)\times SU(3)$ gauge-Higgs unification
• GUT inspired $SO(5)\times U(1)\times SU(3)$ gauge-Higgs unification
• Probing the minimal $U(1{)}_X$ model at future electron-positron colliders via the fermion pair-production channel
• The effective potential and universality in GUT inspired gauge-Higgs unification
• Diphoton Decay Excess and 125 GeV Higgs Boson in Gauge-Higgs Unification
• Dissection of an SO(5) x U(1) Gauge-Higgs Unification Model
• Gauge-Higgs Seesaw Mechanism in Six-Dimensional Grand Unification
• Fermion pair production at $e^{-}{e}^{+}$ linear collider experiments in GUT inspired gauge-Higgs unification
• Phenomenology of GUT-inspired gauge-Higgs unification
• H to Z gamma in Gauge-Higgs Unification
• Gauge-Higgs EW and Grand Unification
• Collider signals of $W^{\prime }$ and $Z^{\prime }$ bosons in the gauge-Higgs unification
• $H\to Z\gamma$ in the gauge-Higgs unification
• Simple fermionic dark matter models and Higgs boson couplings
• Dark matter in the $SO(5)\times U(1)$ gauge-Higgs unification
• The Higgs Particle and Higher-Dimensional Theories
• Electroweak and Left-Right Phase Transitions in $SO(5)\times U(1)\times SU(3)$ Gauge-Higgs Unification
• Forward-backward asymmetry in the gauge-Higgs unification at the International Linear Collider
• Unification of gauge and Yukawa couplings
• Single Higgs Boson Production at Electron-Positron Colliders in Gauge-Higgs Unification
• Anomaly flow by an Aharonov-Bohm phase
• Signals of $W^{\prime }$ and $Z^{\prime }$ bosons at the LHC in the $SU(3)\times SO(5)\times U(1)$ gauge-Higgs unification
• Bhabha scattering in the gauge-Higgs unification
• Toward Realistic Gauge-Higgs Grand Unification
• Few remarks on the Higgs boson decays in gauge-Higgs unification
• Anomalous Higgs interactions in dimensional deconstruction
• Coupling Sum Rules and Oblique Corrections in Gauge-Higgs Unification
• Universality in Anomaly Flow
• Oblique corrections from less-Higgsless models in warped space
• $USp(32)$ Special Grand Unification
• Graviton loop contribution to Higgs potential in gauge-Higgs unification
• Neutrino oscillations and PMNS matrix in gauge-Higgs unification
• Linear Collider Signals of $Z^{\prime }$ Bosons in GUT Inspired Gauge-Higgs Unification
• 126 GeV Higgs boson and universality relations in the $SO(5)\times U(1)$ gauge-Higgs unification
• Family Unification in $SO(16)$ Grand Unification