The $750\text{GeV}$ diphoton resonance in the light of a 2HDM with $S_3$ flavour symmetry

Abstract

Very recently we proposed a predictive 2 Higgs Doublet Model with $S_3$ flavour symmetry that successfully accounts for fermion masses and mixings. In this letter, motivated by the $750$ GeV Higgs diphoton resonance recently reported by the ATLAS and CMS collaborations, we modify this model by adding exotic top partners with electric charge $\frac{5}{3}$ and a electrically charged scalar singlet. These exotic top partners decay into a charged scalar singlet and the SM up type quarks, whereas the charged scalar singlet will mainly decay into SM up and down type quarks. This simple modification enables our model to successfully account for the Higgs diphoton excess at $750\text{GeV}$ provided that the exotic quark masses are in the range $[1,2]$ TeV, for $O(1)$ exotic quark Yukawa couplings.

5 pages, 1 figure. Updated version

Cited by in corpus (28)

• 750 GeV Diphoton Resonance from Singlets in an Exceptional Supersymmetric Standard Model
• An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and $h\to \mu \tau$
• Leptoquark patterns unifying neutrino masses, flavor anomalies, and the diphoton excess
• Digamma, what next?
• Interpreting the 750 GeV digamma excess: a review
• Dark sector shining through 750 GeV dark Higgs boson at the LHC
• Renormalizable Model for Neutrino Mass, Dark Matter, Muon $g-2$ and 750 GeV Diphoton Excess
• 750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
• Subdominant Left-Right Scalar Dark Matter as Origin of the 750 GeV Di-photon Excess at LHC
• Left-right asymmetry and 750 GeV diphoton excess
• Diphoton Excess and Running Couplings
• Diphoton excess at 750 GeV and LHC constraints in models with vector-like particles
• Models of LHC Diphoton Excesses Valid up to the Planck scale
• Note on Spin-2 Particle Interpretation of the 750~GeV Diphoton Excess
• Systematic Study of Diphoton Resonance at 750 GeV from Sgoldstino
• A 750 GeV Diphoton Signal from a Very Light Pseudoscalar in the NMSSM
• Muon anomalies and the $SU(5)$ Yukawa relations
• Asymmetric Dark Matter Models and the LHC Diphoton Excess
• Topological Structure of the Vacuum, Cosmological Constant and Dark Energy
• LHC signatures of neutral pseudo-Goldstone boson in the E6CHM
• Diphoton decay for a 750 GeV scalar boson in a $SU(6)\otimes U(1{)}_X$ model
• Learning from the New Higgs-like Scalar before It Vanishes
• Minimal Dilaton Model and the Diphoton Excess
• Boosted scalar confronting 750 GeV di-photon excess
• The Observed Diphoton Excess in F-theory Inspired Heterotic String-Derived Model
• Exploring high-mass diphoton resonance without new colored states
• Positivity and unitarity constraints on dipole gluon distributions
• Hadron Correlations at Energies from GeV to TeV