Diphotons from Diaxions

Abstract

We study models in which the 750 GeV diphoton excess is due to a scalar decaying to two pseudo-Nambu-Goldstone bosons that subsequently decay into two pairs of highly boosted photons, misidentified as individual photons. Performing a model independent analysis we find that, with axion mass around $200$ MeV, this class of theories can naturally explain the observed signal with a large width, without violating monojet constraints. At the same time the requirement of a prompt axion decay can be satisfied only with a relatively large axion-photon coupling, leading to many new charged particles at the TeV scale. However, the required multiplicities of such fields is still moderately reduced relative to models with direct diphoton production.

21 pages, 6 figures

References in corpus (37)

• ALPtraum: ALP production in proton beam dump experiments
• Scenarii for interpretations of the LHC diphoton excess: two Higgs doublets and vector-like quarks and leptons
• The LHC diphoton resonance and dark matter
• The QCD Axion from Aligned Axions and Diphoton Excess
• Di-photon excess illuminates Dark Matter
• A pseudoscalar decaying to photon pairs in the early LHC Run 2 data
• Singlet Scalar Resonances and the Diphoton Excess
• The 750 GeV diphoton excess from the goldstino superpartner
• One-loop effective lagrangians after matching
• Interpreting the 750 GeV diphoton excess by the singlet extension of the Manohar-Wise Model
• A SUSY Inspired Simplified Model for the 750 GeV Diphoton Excess
• Trinification can explain the di-photon and di-boson LHC anomalies
• Effective interpretations of a diphoton excess
• Visible Cascade Higgs Decays to Four Photons at Hadron Colliders
• The photon PDF in events with rapidity gaps
• The production of a diphoton resonance via photon-photon fusion
• Two Higgs doublets to explain the excesses $pp\to \gamma \gamma (750\mathrm{GeV})$ and $h\to {\tau }^{\pm }{\mu }^{\mp }$
• Four-loop Neutrino Model Inspired by Diphoton Excess at 750 GeV
• Explaining 750 GeV diphoton excess from top/bottom partner cascade decay in two-Higgs-doublet model extension
• An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and $h\to \mu \tau$
• A Loop-philic Pseudoscalar
• 750 GeV Composite Axion as the LHC Diphoton Resonance
• The 750 GeV diphoton LHC excess and Extra Z's in Heterotic-String Derived Models
• 750 GeV Diphoton excess from Gauged $B-L$ Symmetry
• Generalized Zee-Babu model with 750 GeV Diphoton Resonance
• Diphoton Excess at 750 GeV in leptophobic U(1)${}^{\prime }$ model inspired by $E_6$ GUT
• Jets and Photons
• Renormalizable Model for Neutrino Mass, Dark Matter, Muon $g-2$ and 750 GeV Diphoton Excess
• Interpretation of 750 GeV Diphoton Excess at LHC in Singlet Extension of Color-octet Neutrino Mass Model
• Vector-Like Exotics in F-Theory and 750 GeV Diphotons
• Future Collider Signatures of the Possible 750 GeV State
• Studying 750 GeV Di-photon Resonance at Photon-Photon Collider
• New results at LHC confirming the vacuum stability and Multiple Point Principle
• How Resonance-Continuum Interference Changes 750 GeV Diphoton Excess: Signal Enhancement and Peak Shift
• Interpreting the 750 GeV diphoton excess in the Minimal Dilaton Model
• Bulk gauge and matter fields in nested warping: II. Symmetry Breaking and phenomenological consequences
• Electroweak Symmetry Breaking and the Higgs Boson

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• Dark Matter through the Higgs portal
• A Visible QCD Axion from an Enlarged Color Group
• The NMSSM lives: with the 750 GeV diphoton excess
• Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess
• Models of LHC Diphoton Excesses Valid up to the Planck scale
• Asymmetric Dark Matter Bound State
• Resonant Diphoton Phenomenology Simplified
• Faking SM Photons by Displaced Dark Photon Decays
• Collider Tests of (Composite) Diphoton Resonances
• Search for pairs of highly collimated photon-jets in $pp$ collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Diphotons at the $Z$-pole in Models of the 750 GeV Resonance Decaying to Axion-Like Particles
• Diphoton resonance confronts dark matter
• A closer look to the sgoldstino interpretation of the diphoton excess
• Learning from the New Higgs-like Scalar before It Vanishes
• Minimal Dilaton Model and the Diphoton Excess
• Diphoton Resonance in F-theory inspired Flipped SO(10)
• Astrophysical Constraints on Singlet Scalars at LHC
• Diphoton signal via Chern-Simons interaction in a warped geometry scenario
• Scrutinizing a di-photon resonance at the LHC through Moscow zero
• Multi-step production of a diphoton resonance