$h\to \gamma \gamma$ excess and Dark Matter from Composite Higgs Models

Abstract

Composite Higgs Models are very appealing candidates for a natural realization of electroweak symmetry breaking. Non minimal models could explain the recent Higgs data from ATLAS, CMS and Tevatron experiments, including the excess in the amount of diphoton events, as well as provide a natural dark matter candidate. In this article, we study a Composite Higgs model based on the coset $SO(7)/G2$. In addition to the Higgs doublet, one $SU(2{)}_L$ singlet of electric charge one, ${\kappa }^{\pm }$, as well as one singlet $\eta$ of the whole Standard Model group arise as pseudo-Goldstone bosons. ${\kappa }^{\pm }$ and $\eta$ can be responsible of the diphoton excess and dark matter respectively.

27 pages, 14 figures. V2: added references, corrected typos, accepted for publication in JHEP

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Cited by in corpus (57)

• Composite Higgses
• A unified explanation for dark matter and electroweak baryogenesis with direct detection and gravitational wave signatures
• Vacuum Stability and Higgs Diphoton Decays in the MSSM
• LHC bounds on Lepton Number Violation mediated by doubly and singly-charged scalars
• A Global View of the Off-Shell Higgs Portal
• New Scalar Contributions to $h\to Z\gamma$
• Gravitational wave and collider probes of a triplet Higgs sector with a low cutoff
• Modified Higgs Sectors and NLO Associated Production
• Mass-degenerate Higgs bosons at 125 GeV in the Two-Higgs-Doublet Model
• Direct Bounds on Heavy Top-Like Quarks With Standard and Exotic Decays
• One-loop matching in the SMEFT extended with a sterile neutrino
• Enhanced diphoton rates at Fermi and the LHC
• Light Stops, Light Staus and the 125 GeV Higgs
• An effective gauge-Higgs operators analysis of new physics associated with the Higgs
• Higgs Couplings in Composite Models
• Little Higgs theory confronted with the LHC Higgs data
• Charged Composite Scalar Dark Matter
• The Z+photon and diphoton decays of the Higgs boson as a joint probe of low energy SUSY models at LHC
• Dark matter shifts away from direct detection
• Vacuum alignment in a composite 2HDM
• Exceptional Composite Dark Matter
• Higgs decays to gamma l+ l- in the standard model
• Custodial Leptons and Higgs Decays
• Probing Charged Matter Through Higgs Diphoton Decay, Gamma Ray Lines, and EDMs
• Higgs diphoton rate and mass enhancement with vector-like leptons and the scale of supersymmetry
• Searches for vector-like quarks at future colliders and implications for composite Higgs models with dark matter
• Strongly Interacting Light Dark Matter
• The S parameter for a Light Composite Higgs: a Dispersion Relation Approach
• The Last Gasp of Dark Matter Effective Theory
• Collider Searches for Dark Matter through the Higgs Lens
• The Natural Composite Higgs
• Diphoton Decay Excess and 125 GeV Higgs Boson in Gauge-Higgs Unification
• $SU(2)\otimes SU(2)$ Gauge Extensions of the MSSM Revisited
• Hypercharged Naturalness
• Recent $\mathbf{B}$ Physics Anomalies - a First Hint for Compositeness?
• E6 inspired composite Higgs model
• Light staus and enhanced Higgs diphoton rate with non-universal gaugino masses and SO(10) Yukawa unification
• H to Z gamma in Gauge-Higgs Unification
• Composite dark matter phenomenology in the presence of lighter degrees of freedom
• Simple fermionic dark matter models and Higgs boson couplings
• Higgs diphoton rate enhancement from supersymmetric physics beyond the MSSM
• LHC diphoton and Z+photon Higgs signals in the Higgs triplet model with Y=0
• Dark matter in the $SO(5)\times U(1)$ gauge-Higgs unification
• 125 GeV Higgs Boson and TeV Scale Colored Fermions in Gauge-Higgs Unification
• Improving Fine-tuning in Composite Higgs Models
• Searching for pseudo Nambu-Goldstone boson dark matter production in association with top quarks
• LHC signatures of neutral pseudo-Goldstone boson in the E6CHM
• $Hb\bar{b}$ production in Composite Higgs Models
• Running beyond ALPs: shift-breaking and CP-violating effects
• Lepton Polarization Asymmetries of $H\to \gamma {\tau }^{+}{\tau }^{-}$ Decays in Standard Model
• Direct Constraints, Flavor Physics, and Flavor Anomalies in Composite Higgs Models
• A Light Supersymmetric Higgs Sector Hidden by a Standard Model-like Higgs
• What the top asymmetries tell us about single top production and Higgs decays
• Lepton number violation and $h\to \gamma \gamma$ in a radiative inverse seesaw dark matter model
• Softly shifting away from dark matter direct detection
• Novel flavour-changing neutral currents in the top quark sector
• Dark Matter Constraints on Composite Higgs Models