750 GeV diphoton resonance in a top and bottom seesaw model

Abstract

The top/bottom seesaw model, which extends the top seesaw in order to accomodate a 125 GeV Higgs boson, predicts vector-like top/bottom partners and these partners can be bounded to form several neutral and charged singlet composite scalars by some new strong dynamics. In this letter, we use such a singlet scalar to interpret the 750 GeV diphoton reseanance. This singlet scalar is dominantly produced through the gluon fusion process induced by the partners and its diphoton decay is induced by both the partners and the charged singlet scalars. We show that this scenario can readily account for the observed 750 GeV diphoton signal under the current LHC constraints. Further, this scenario predicts some other phenomenology, such as a strong correlation between the decays to $\gamma \gamma$, $Z\gamma$ and $ZZ$, a three-photon singal from the associate production of a singlet scalar and a photon, as well as some signals from the partner cascade decays. These signals may jointly allow for a test of this framework in future LHC and ILC experiments.

version accepted by Phys. Lett. B

References in corpus (6)

• 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
• The Minimal Scalar-Stealth Top Interpretation of the Diphoton Excess
• A Boost Test of Anomalous Diphoton Resonance at the LHC
• Vacuum Alignment of the Top-Mode Pseudo-Nambu-Goldstone Boson Higgs Model
• Hidden particle production at the ILC

Cited by in corpus (58)

• Di-photon resonance around 750 GeV: shedding light on the theory underneath
• A hidden confining world on the 750 GeV diphoton excess
• On the 750 GeV di-photon excess
• Indirect Constraints on the Scalar Di-Photon Resonance at the LHC
• Flavor Anomalies, the Diphoton Excess and a Dark Matter Candidate
• Symmetries Behind the 750 GeV Diphoton Excess
• Measuring the diphoton coupling of a 750 GeV resonance
• Model-independent combination of diphoton constraints at 750 GeV
• The LHC diphoton resonance from gauge symmetry
• Di-photon Excess Explained by a Resonant Sneutrino in R-parity Violating Supersymmetry
• Interpreting the 750 GeV diphoton excess in minimal extensions of Two-Higgs-Doublet models
• The 750 GeV Diphoton excess in a $U(1)$ hidden symmetry model
• Challenges and opportunities for heavy scalar searches in the $t\bar{t}$ channel at the LHC
• Diphoton resonance at 750 GeV in the broken MRSSM
• Perturbativity, vacuum stability and inflation in the light of 750 GeV diphoton excess
• Explanation of $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ and muon $g-2$, and implications at the LHC
• Digamma, what next?
• An O(750) GeV Resonance and Inflation
• Interpreting the 750 GeV digamma excess: a review
• Higgs precision study of the 750 GeV diphoton resonance and the 125 GeV standard model Higgs boson with Higgs-singlet mixing
• NMSSM extended with vectorlike particles and the diphoton excess at the LHC
• Top-phobic heavy Higgs boson as the 750 GeV diphoton resonance
• 750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
• How Resonance-Continuum Interference Changes 750 GeV Diphoton Excess: Signal Enhancement and Peak Shift
• Left-right asymmetry and 750 GeV diphoton excess
• Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess
• Diphoton excess at 750 GeV and LHC constraints in models with vector-like particles
• Comments on the diphoton excess: critical reappraisal of effective field theory interpretations
• Models of LHC Diphoton Excesses Valid up to the Planck scale
• One Bump or Two Peaks? The 750 GeV Diphoton Excess and Dark Matter with a Complex Mediator
• One jet to rule them all: monojet constraints and invisible decays of a 750 GeV diphoton resonance
• An Extended Colored Zee-Babu Model
• A four-loop Radiative Seesaw Model
• Note on Spin-2 Particle Interpretation of the 750~GeV Diphoton Excess
• Diphotons from Diaxions
• A new scalar resonance at 750 GeV: Towards a proof of concept in favor of strongly interacting theories
• The $750$ GeV Diphoton Excesses in a Realistic D-brane Model
• The 750GeV diphoton excess: who introduces it?
• Asymmetric Dark Matter Models and the LHC Diphoton Excess
• A Flippon Related Singlet at the LHC II
• Phenomenology of dark matter in chiral U(1)${}_X$ dark sector
• A closer look to the sgoldstino interpretation of the diphoton excess
• An SU(6) GUT Origin of the TeV-Scale Vector-like Particles Associated with the 750 GeV Diphoton Resonance
• Exploring the Jet Multiplicity in the 750 GeV Diphoton Excess
• Has a Higgs-flavon with a $750$ GeV mass been detected at the LHC13?
• Learning from the New Higgs-like Scalar before It Vanishes
• From the 750 GeV Diphoton Resonance to Multilepton Excesses
• Minimal Dilaton Model and the Diphoton Excess
• A Megaxion at 750 GeV as a First Hint of Low Scale String Theory
• Novel kinematics from a custodially protected diphoton resonance
• Boosted scalar confronting 750 GeV di-photon excess
• Fundamental scalar field with zero dimension from anomaly cancelations
• Phenomenology of an $SU(2{)}_1\times SU(2{)}_2\times U(1{)}_Y$ model at the LHC
• Diphoton and Dark Matter from Cascade Decay
• Diphoton Excess through Dark Mediators
• Modified top quark condensation model with the extra heavy fermion, the $125$ GeV Pseudo - Goldstone boson, and the additional heavy scalar bosons
• 750 GeV diphoton excess confronted with a top-pion in the TTM model
• Noncommutative approach to disclose a Higgs group