A Promising Interpretation of Diphoton Resonance at 750 GeV

Abstract

Recently, an excess of events in diphoton channel with invariant mass of about 750 GeV has been reported by the ATLAS and CMS Collaborations. Considering it as a tantalizing hint for new physics beyond the Standard Model (SM), we propose a simple extension of the SM with an additional doublet Higgs $H^{{}^{\prime }}$ and a singlet $s$. We consider the neutral component $H_0^{\prime }$ of $H^{\prime }$ as the 750 GeV resonance, and assume that $s$ is lighter than 2.6 GeV. In particular, $H_0^{\prime }$ can be produced at tree level via $q\bar{q}$ production, and decay into a pair of $s$ at tree level. And then $s$ can decay into a pair of collimated photons, which cannot be distinguished at the LHC. We show that the diphoton production cross section can be from 3 to 13 $\mathrm{fb}$, the decay width of $H_0^{\prime }$ can be from 30 to 60 GeV, and all the current experimental constraints including dijet constraint can be satisfied.

arXiv comment14 pages, 7 figures

References in corpus (92)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• MadGraph 5 : Going Beyond
• UFO - The Universal FeynRules Output
• Implications of CTEQ global analysis for collider observables
• SARAH 4: A tool for (not only SUSY) model builders
• Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
• SARAH 3.2: Dirac Gauginos, UFO output, and more
• What is the gamma gamma resonance at 750 GeV?
• Performance of photon reconstruction and identification with the CMS detector in proton-proton collisions at sqrt(s) = 8 TeV
• Scenarii for interpretations of the LHC diphoton excess: two Higgs doublets and vector-like quarks and leptons
• Composite Models for the 750 GeV Diphoton Excess
• Phenomenology of a 750 GeV Singlet
• Search for Scalar Diphoton Resonances in the Mass Range $65-600$ GeV with the ATLAS Detector in $pp$ Collision Data at $\sqrt{s}$ = 8 $TeV$
• Measurement of the inclusive isolated prompt photon cross section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• On the Interpretation of a Possible $\sim 750$ GeV Particle Decaying into $\gamma \gamma$
• The LHC diphoton resonance and dark matter
• The QCD Axion from Aligned Axions and Diphoton Excess
• Di-photon excess illuminates Dark Matter
• Scattering Light by Light at 750 GeV at the LHC
• Computing decay rates for new physics theories with FeynRules and MadGraph5/aMC@NLO
• The Minimal Model of a Diphoton Resonance: Production without Gluon Couplings
• Search for diphoton resonances in the mass range from 150 to 850 GeV in pp collisions at sqrt(s) = 8 TeV
• Singlet Scalar Resonances and the Diphoton Excess
• First interpretation of the 750 GeV di-photon resonance at the LHC
• Diphoton Signatures from Heavy Axion Decays at the CERN Large Hadron Collider
• The diphoton resonance as a gravity mediator of dark matter
• A 750 GeV Dark Pion: Cousin of a Dark G-parity-odd WIMP
• Di-photon resonance around 750 GeV: shedding light on the theory underneath
• Tricking Landau-Yang: How to obtain the diphoton excess from a vector resonance
• Quirky Explanations for the Diphoton Excess
• The Minimal Scalar-Stealth Top Interpretation of the Diphoton Excess
• A hidden confining world on the 750 GeV diphoton excess
• A Boost Test of Anomalous Diphoton Resonance at the LHC
• The 750 GeV $S$-cion: Where else should we look for it?
• Interpretation of the diphoton excess at CMS and ATLAS
• Higgs singlet boson as a diphoton resonance in a vector-like quark model
• Vector Leptoquarks and the 750 GeV Diphoton Resonance at the LHC
• Implication of the 750 GeV diphoton resonance on two-Higgs-doublet model and its extensions with Higgs field
• See-Saw Composite Higgses at the LHC: Linking Naturalness to the $750$ GeV Di-Photon Resonance
• 750 GeV Diphotons from a D3-brane
• A resonance without resonance: scrutinizing the diphoton excess at 750 GeV
• A SUSY Inspired Simplified Model for the 750 GeV Diphoton Excess
• Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise Model
• On the 750 GeV di-photon excess
• Implications of the absence of high-mass radion signals
• Interpreting the 750 GeV Di-photon Resonance using photon-jets in Hidden-Valley-like models
• Flavor Anomalies, the Diphoton Excess and a Dark Matter Candidate
• On sgoldstino interpretation of the diphoton excess
• The 750 GeV Diphoton Excess May Not Imply a 750 GeV Resonance
• Asymmetric Dark Matter in the Sun and the Diphoton Excess at the LHC
• 750 GeV Resonance in the Dark Left-Right Model
• Singlets in Composite Higgs Models in light of the LHC di-photon searches
• Gauged Two Higgs Doublet Model confronts the LHC 750 GeV di-photon anomaly
• Interpreting $750$ GeV Diphoton Excess with R-parity Violating Supersymmetry
• Could the width of the diphoton anomaly signal a three-body decay ?
• Symmetries Behind the 750 GeV Diphoton Excess
• The 750 GeV diphoton excess at the LHC and dark matter constraints
• Trinification can explain the di-photon and di-boson LHC anomalies
• Effective interpretations of a diphoton excess
• 750 GeV Diphoton Signal from One-Family Walking Technipion
• Scalar Explanation of Diphoton Excess at LHC
• 750 GeV Diphoton Resonance, 125 GeV Higgs and Muon g-2 Anomaly in Deflected Anomaly Mediation SUSY Breaking Scenario
• Radion Candidate for the LHC Diphoton Resonance
• New vector bosons and the diphoton excess
• Model-independent combination of diphoton constraints at 750 GeV
• Running after Diphoton
• A Simple $U(1)$ Gauge Theory Explanation of the Diphoton Excess
• The LHC diphoton resonance from gauge symmetry
• Electroweak Vacuum Stability and Diphoton Excess at 750 GeV
• LHC diphotons from electroweakly pair-produced composite pseudoscalars
• Di-photon Excess Explained by a Resonant Sneutrino in R-parity Violating Supersymmetry
• The LHC 750 GeV diphoton excess in supersymmetry with gauged baryon and lepton numbers
• LHC diphoton 750 GeV resonance as an indication of $SU(3{)}_c\times SU(3{)}_L\times U(1{)}_X$ gauge symmetry
• Interpreting 750 GeV diphoton excess in SU(5) grand unified theory
• Interpreting the 750 GeV diphoton excess in minimal extensions of Two-Higgs-Doublet models
• The 750 GeV diphoton excess and its explanation in 2-Higgs Doublet Models with a real inert scalar multiplet
• Diphoton excess at 750 GeV: Singlet scalars confront triviality
• Squarkonium, diquarkonium and octetonium at the LHC and their di-photon decays
• The 750 GeV Diphoton excess in a $U(1)$ hidden symmetry model
• A 750 GeV Messenger of Dark Conformal Symmetry Breaking
• Diphoton resonance at 750 GeV in the broken MRSSM
• LHC diphoton excess from colorful resonances
• Strong CP Problem, Neutrino Masses and the 750 GeV Diphoton Resonance
• Supersoft SUSY Models and the 750 GeV Diphoton Excess, Beyond Effective Operators
• Perturbativity, vacuum stability and inflation in the light of 750 GeV diphoton excess
• A natural Coleman-Weinberg theory explains the diphoton excess
• 750 GeV Diphotons: Implications for Supersymmetric Unification
• The 750 GeV Diphoton Excess as a First Light on Supersymmetry Breaking
• 750 GeV Diphotons: Implications for Supersymmetric Unification II
• Experimental Considerations Motivated by the Diphoton Excess at the LHC
• Higgs precision study of the 750 GeV diphoton resonance and the 125 GeV standard model Higgs boson with Higgs-singlet mixing
• On dilatons and the LHC diphoton excess

Cited by in corpus (31)

• 750 GeV Diphoton Resonance from Singlets in an Exceptional Supersymmetric Standard Model
• Implications of the diphoton excess on Left-Right models and gauge unification
• LHC 750 GeV Diphoton excess in a radiative seesaw model
• The 750 GeV diphoton LHC excess and Extra Z's in Heterotic-String Derived Models
• Digamma, what next?
• Diphoton Excess at 750 GeV in leptophobic U(1)${}^{\prime }$ model inspired by $E_6$ GUT
• Interpreting the 750 GeV digamma excess: a review
• The NMSSM lives: with the 750 GeV diphoton excess
• 750 GeV Resonance in the Gauged $U(1{)}^{\prime }$-Extended MSSM
• Vector-Like Exotics in F-Theory and 750 GeV Diphotons
• 750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
• 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
• An Extended Colored Zee-Babu Model
• Asymmetric Dark Matter Bound State
• Interpreting 750 GeV Diphoton Excess in Plain NMSSM
• Resonant Diphoton Phenomenology Simplified
• Systematic Study of Diphoton Resonance at 750 GeV from Sgoldstino
• A 750 GeV Diphoton Signal from a Very Light Pseudoscalar in the NMSSM
• A Flippon Related Singlet at the LHC II
• 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
• Boosted scalar confronting 750 GeV di-photon excess
• The Observed Diphoton Excess in F-theory Inspired Heterotic String-Derived Model
• Chiral heavy fermions in a two Higgs doublet model: 750 GeV resonance or not
• Connection between diphoton and triboson channels in new physics searches
• Multi-step production of a diphoton resonance