Strong CP Problem, Neutrino Masses and the 750 GeV Diphoton Resonance

Abstract

We present an $SU(3{)}_c^{}\times SU(2{)}_L^{}\times SU(2{)}_R^{}\times U(1{)}_L^{}\times U(1{)}_R^{}\to SU(3{)}_c^{}\times SU(2{)}_L^{}\times SU(2{)}_R^{}\times U(1{)}_{B-L}^{}$ left-right symmetric model with a discrete parity symmetry to realize a universal seesaw scenario. The model can simultaneously solve the strong CP problem without resorting to the unobserved axion and explain the 750 GeV diphoton resonance reported recently by the ATLAS and CMS collaborations at the LHC. Owing to large suppressions in the two-loop induced Dirac mass terms, the Majorana mass matrices of left- and right-handed neutrinos naturally share the same structure. That allows us to quantitatively study the neutrinoless double beta decay induced by the right-handed currents.

Cited by in corpus (48)

• A Visible QCD Axion from an Enlarged Color Group
• Quark Seesaw, Vectorlike Fermions and Diphoton Excess
• Electroweak Vacuum Stability and Diphoton Excess at 750 GeV
• The 750 GeV Diphoton excess in a $U(1)$ hidden symmetry model
• 750 GeV Diphoton Resonance from Singlets in an Exceptional Supersymmetric Standard Model
• Implications of the diphoton excess on Left-Right models and gauge unification
• Two Higgs doublets to explain the excesses $pp\to \gamma \gamma (750\mathrm{GeV})$ and $h\to {\tau }^{\pm }{\mu }^{\mp }$
• Perturbativity, vacuum stability and inflation in the light of 750 GeV diphoton excess
• Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV
• The 750 GeV diphoton resonance as a singlet scalar in an extra dimensional model
• An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and $h\to \mu \tau$
• LHC 750 GeV Diphoton excess in a radiative seesaw model
• Digamma, what next?
• 750 GeV Diphoton excess from Gauged $B-L$ Symmetry
• Diphoton Excess at 750 GeV in leptophobic U(1)${}^{\prime }$ model inspired by $E_6$ GUT
• Realizing Dark Matter and Higgs Inflation in Light of LHC Diphoton Excess
• A Promising Interpretation of Diphoton Resonance at 750 GeV
• 750 GeV Diphoton excess from $E_6$ in F-theory GUTs
• Interpreting the 750 GeV digamma excess: a review
• An O(750) GeV Resonance and Inflation
• Dark sector shining through 750 GeV dark Higgs boson at the LHC
• Higgs precision study of the 750 GeV diphoton resonance and the 125 GeV standard model Higgs boson with Higgs-singlet mixing
• Diphoton Excess in Consistent Supersymmetric SU(5) Models with Vector-like Particles
• Vector-Like Exotics in F-Theory and 750 GeV Diphotons
• Interpretation of 750 GeV Diphoton Excess at LHC in Singlet Extension of Color-octet Neutrino Mass Model
• 750 GeV Resonance in the Gauged $U(1{)}^{\prime }$-Extended MSSM
• Studying 750 GeV Di-photon Resonance at Photon-Photon Collider
• Light Sterile Neutrino and Dark Matter in Left-Right Symmetric Models Without Higgs Bidoublet
• 750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
• Observable Lepton Number Violation with Predominantly Dirac Nature of Active Neutrinos
• Interpreting The 750 GeV Diphoton Excess Within Topflavor Seesaw Model
• 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 at 750 GeV and LHC constraints in models with vector-like particles
• Heavy right-handed neutrino dark matter in left-right models
• Diphoton Excess and Running Couplings
• 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
• The $750$ GeV Diphoton Excesses in a Realistic D-brane Model
• A Flippon Related Singlet at the LHC II
• Asymmetric Dark Matter Models and the LHC Diphoton Excess
• LHC signatures of neutral pseudo-Goldstone boson in the E6CHM
• Topological Structure of the Vacuum, Cosmological Constant and Dark Energy
• Learning from the New Higgs-like Scalar before It Vanishes
• Diphoton decay for a 750 GeV scalar boson in a $SU(6)\otimes U(1{)}_X$ model
• Minimal Dilaton Model and the Diphoton Excess
• Exploring high-mass diphoton resonance without new colored states