Boosted scalar confronting 750 GeV di-photon excess

Abstract

We consider the di-photon signal arises from two bunches of collimated photon jets emitting from a pair of highly boosted scalars. Following the discussion of detecting the photon jets at the collider, we extend the two-Higgs-doublet model (2HDM) by adding a gauge singlet scalar. To explain the di-photon excess which is recently observed at the first 13 TeV run of the LHC, the mixing between the heavy doublet state and the newly added singlet is crucially needed. After the mixing, one can have a heavy Higgs state $Y_2$ at 750 GeV and a very singlet-like scalar $Y_1$ of sub-GeV, which would be highly boosted through the $Y_2$ decay. Both real singlet and complex singlet extension are studied. It turns out that only the complex model can yield the 1-10 fb cross section in the di-photon final state in accompany with the decay length of the order of 1 m for the $Y_1$. This complex model parametrically predicts the width of 750 GeV resonance $\gtrsim 1$ GeV. In addition, the pseudoscalar component of the singlet in this model is naturally stable and hence could be a dark matter candidate.

arXiv comment20 pages, 8 figures

References in corpus (134)

• Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• 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
• 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 $\gamma \gamma$
• Light Axion within the Next-to-Minimal Supersymmetric Standard Model
• Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 2: $m_H=125$ GeV
• Scrutinizing the Alignment Limit in Two-Higgs-Doublet Models. Part 1: $m_h=125$ GeV
• Higgs Boson Decays to CP-odd Scalars at the Tevatron and Beyond
• 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
• Singlet Scalar Resonances and the Diphoton Excess
• Echoes of the Electroweak Phase Transition: Discovering a second Higgs doublet through $A_0\to H_{0}Z$
• 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 search for $t\bar{t}$ resonances using lepton-plus-jets events in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Quark Seesaw, Vectorlike Fermions and Diphoton Excess
• Di-photon resonance around 750 GeV: shedding light on the theory underneath
• Search for long-lived neutral particles decaying into lepton jets in proton--proton collisions at $\sqrt{s}$ = 8 TeV with the ATLAS detector
• The Minimal Scalar-Stealth Top Interpretation of the Diphoton Excess
• A hidden confining world on the 750 GeV diphoton excess
• 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
• Implication of the 750 GeV diphoton resonance on two-Higgs-doublet model and its extensions with Higgs field
• Search for pair-produced long-lived neutral particles decaying in the ATLAS hadronic calorimeter in $pp$ collisions at $\sqrt{s}$ = 8 TeV
• 750 GeV Diphotons from a D3-brane
• A resonance without resonance: scrutinizing the diphoton excess at 750 GeV
• Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise Model
• Implications of the absence of high-mass radion signals
• On the 750 GeV di-photon excess
• 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
• 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
• Interpreting $750$ GeV Diphoton Excess with R-parity Violating Supersymmetry
• Could the width of the diphoton anomaly signal a three-body decay ?
• The 750 GeV diphoton excess at the LHC and dark matter constraints
• Effective interpretations of a diphoton excess
• 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
• Light Higgs bosons in Two-Higgs-Doublet Models
• 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
• Triggers for displaced decays of long-lived neutral particles in the ATLAS detector
• 750 GeV diphoton resonance in a top and bottom seesaw model
• Interpreting the 750 GeV diphoton excess in minimal extensions of Two-Higgs-Doublet models
• A 750 GeV Portal: LHC Phenomenology and Dark Matter Candidates
• Diphoton excess at 750 GeV: Singlet scalars confront triviality
• The 750 GeV diphoton excess and its explanation in 2-Higgs Doublet Models with a real inert scalar multiplet
• The 750 GeV Diphoton excess in a $U(1)$ hidden symmetry model
• A 750 GeV Messenger of Dark Conformal Symmetry Breaking
• Perturbativity, vacuum stability and inflation in the light of 750 GeV diphoton excess
• 750 GeV diphoton resonance in a visible heavy QCD axion model
• 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 $h\to \mu \tau$
• Leptoquark patterns unifying neutrino masses, flavor anomalies, and the diphoton excess
• Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
• 750 GeV Diphotons: Implications for Supersymmetric Unification II
• A Loop-philic Pseudoscalar
• A 750 GeV dark matter messenger at the Galactic Center
• 750 GeV Composite Axion as the LHC Diphoton Resonance
• Realizing Dark Matter and Higgs Inflation in Light of LHC Diphoton Excess
• 750 GeV Diphoton excess from Gauged $B-L$ Symmetry
• Broad Diphotons from Narrow States
• Is an axizilla possible for di-photon resonance?
• A Promising Interpretation of Diphoton Resonance at 750 GeV
• Dark sector shining through 750 GeV dark Higgs boson at the LHC
• Diphoton excess at 750 GeV in an extended scalar sector
• Simplified Models for Higgs Physics: Singlet Scalar and Vector-like Quark Phenomenology
• Jets and Photons
• Renormalizable Model for Neutrino Mass, Dark Matter, Muon $g-2$ and 750 GeV Diphoton Excess
• Photons, Photon Jets and Dark Photons at 750 GeV and Beyond
• The NMSSM lives: with the 750 GeV diphoton excess
• Interpretation of 750 GeV Diphoton Excess at LHC in Singlet Extension of Color-octet Neutrino Mass Model
• Top-phobic heavy Higgs boson as the 750 GeV diphoton resonance
• The $750\text{GeV}$ diphoton resonance in the light of a 2HDM with $S_3$ flavour symmetry
• The Diphoton Excess Inspired Electroweak Baryogenesis
• 750 GeV Di-photon excess at CERN LHC from a dark sector assisted scalar decay
• KK Gravitons at LHC2
• Diphoton excess at 750 GeV and LHC constraints in models with vector-like particles
• Diphoton Excess and Running Couplings
• One Bump or Two Peaks? The 750 GeV Diphoton Excess and Dark Matter with a Complex Mediator
• Models of LHC Diphoton Excesses Valid up to the Planck scale
• Potential of a singlet scalar enhanced Standard Model
• A Diphoton Resonance from Bulk RS
• 750 GeV Diphoton Resonance in Warped Geometries
• Charged Higgs boson in the $W^{\pm }$ Higgs channel at the Large Hadron Collider
• Asymmetric Dark Matter Bound State
• Di-Photon excess in the 2HDM: hasting towards the instability and the non-perturbative regime
• Interpreting 750 GeV Diphoton Excess in Plain NMSSM
• Systematic Study of Diphoton Resonance at 750 GeV from Sgoldstino
• Faking SM Photons by Displaced Dark Photon Decays
• A 750 GeV graviton from holographic composite dark sectors
• Can the 750-GeV diphoton resonance be the singlet Higgs boson of custodial Higgs triplet model?
• Can the diphoton enhancement at 750 GeV be due to a neutral technipion?
• New Physics at 1 TeV?
• A flavour physics scenario for the 750 GeV diphoton anomaly
• The 750 GeV diphoton resonance as an sgoldstino: a reappraisal
• Di-photon resonance and Dark Matter as heavy pions
• Hidden Pion Varieties in Composite Models for Diphoton Resonances
• A 750 GeV Diphoton Signal from a Very Light Pseudoscalar in the NMSSM
• Diphotons from an Electroweak Triplet-Singlet
• Deciphering the CP nature of the 750 GeV resonance
• The 750 GeV diphoton excess in a two Higgs doublet model and a singlet scalar model, with vector-like fermions, unitarity constraints, and dark matter implications
• Asymmetric Dark Matter Models and the LHC Diphoton Excess
• Leptogenesis via the 750 GeV pseudoscalar
• Diphoton Signals from Colorless Hidden Quarkonia
• Photo-production of a 750 GeV di-photon resonance mediated by Kaluza-Klein leptons in the loop
• An SU(6) GUT Origin of the TeV-Scale Vector-like Particles Associated with the 750 GeV Diphoton Resonance
• Diphoton Excess as a Hidden Monopole
• Diphoton excess and VV-scattering
• Heavy Leptonium as the Origin of the 750 GeV Diphoton Excess
• Vacuum energy, Standard Model physics and the $750\mathrm{GeV}$ Diphoton Excess at the LHC
• Minimal Dilaton Model and the Diphoton Excess
• Diphoton excess from hidden U(1) gauge symmetry with large kinetic mixing
• From the 750 GeV Diphoton Resonance to Multilepton Excesses
• Novel kinematics from a custodially protected diphoton resonance
• Models of 750 GeV quarkonium and the LHC excesses
• Charged-Higgs production in the Two-Higgs-Doublet Model --- the τνchannel
• The 750 GeV Resonance as Non-Minimally Coupled Inflaton: Unitarity Violation and Why the Resonance is a Real Singlet Scalar
• A CP-violating phase in a two Higgs triplet scenario : some phenomenological implications
• Diphoton signal via Chern-Simons interaction in a warped geometry scenario
• Superbumps

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