New LHC bound on low-mass diphoton resonances

Abstract

We derive a new bound on diphoton resonances using inclusive diphoton cross section measurements at the LHC, in the so-far poorly constrained mass range between the Upsilon and the SM Higgs. This bound sets the current best limit on axion-like particles that couple to gluons and photons, for masses between 10 and 65 GeV. We also estimate indicative sensitivities of a dedicated diphoton LHC search in the same mass region, at 7, 8 and 14 TeV. As a byproduct of our analysis, we comment on the axion-like particle interpretation of the CMS excesses in low-mass dijet and diphoton searches.

7 pages + appendices, 5 figures, 2 tables. v2: discussion improved, new bound derived also from Tevatron, conclusions unchanged. v3: matches PLB version

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Cited by in corpus (70)

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• Light scalars in composite Higgs models
• Decays of the neutral Higgs bosons into SM fermions and gauge bosons in the $\mathcal{C}\mathcal{P}$-violating NMSSM
• Heavy Axion Opportunities at the DUNE Near Detector
• Axion couplings to electroweak gauge bosons
• Gravitational Waves from First-Order Phase Transition in a Simple Axion-Like Particle Model
• Higgs bosons with large couplings to light quarks
• New Probes for Axion-like Particles at Hadron Colliders
• Heavy QCD Axion in $b\to s$ transition: Enhanced Limits and Projections
• Collider constraints on light pseudoscalars
• Relaxion and light (pseudo)scalars at the HL-LHC and lepton colliders
• The Weak Scale as a Trigger
• Heavy QCD Axion at Belle II: Displaced and Prompt Signals
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• Probing naturally light singlets with a displaced vertex trigger
• Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC
• The semi-constrained NMSSM in light of muon g-2, LHC, and dark matter constraints
• Unleashing the full power of LHCb to probe Stealth New Physics
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• Axion-like Particle Searches at DarkQuest
• Photon-jet events as a probe of axion-like particles at the LHC
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• Neutron star observations of pseudoscalar-mediated dark matter
• Axions: From Magnetars and Neutron Star Mergers to Beam Dumps and BECs
• A search for axion-like particles in light-by-light scattering at the CLIC
• The Anomalous Case of Axion EFTs and Massive Chiral Gauge Fields
• Production of axion-like particles via vector boson fusion at future electron-positron colliders
• Axionic Electroweak Baryogenesis
• Can we discover a light singlet-like NMSSM Higgs boson at the LHC?
• A Light Scalar in the Minimal Dilaton Model in Light of LHC Constraints
• Search for boosted diphoton resonances in the 10 to 70 GeV mass range using 138 fb${}^{-1}$ of 13 TeV $pp$ collisions with the ATLAS detector
• Enhancing Searches for Heavy QCD Axions via Dimuon Final States
• A light dilaton at the LHC
• Searching for axionlike particle at future $ep$ colliders
• The Chiral Lagrangian of CP-Violating Axion-Like Particles
• Exploring new possibilities to discover a light pseudo-scalar at LHCb
• A global analysis of axion-like particle interactions using SMEFT fits
• Probing the Interactions of Axion-Like Particles with Electroweak Bosons and the Higgs Boson in the High Energy Regime at LHC
• Searching for axion-like particles with data scouting at ATLAS and CMS
• Probing HNL-ALP couplings at colliders
• Axiogenesis with a Heavy QCD Axion
• Probing ALPs at the CERN Gamma Factory
• Warm inflation with a heavy QCD axion
• Leading Logs in QCD Axion Effective Field Theory
• Limits on ALP-neutrino couplings from loop-level processes
• Future lepton collider prospects for a ubiquitous composite pseudo-scalar
• BSM constraints from model-independent measurements: A Contur Update
• An effective scanning method of the NMSSM parameter space
• Axion-Like Particles at future $e^{-}p$ collider
• Constraining R-axion models through dijet searches at the LHC
• A comprehensive study of ALPs from $B$-decays
• ALPs and HNLs at LHC and Muon Colliders: Uncovering New Couplings and Signals
• Visible GeV ALP from TeV Vector-like Leptons
• Prospects for detecting the couplings of axion-like particle with neutrinos at the CEPC
• Real-time discrimination of photon pairs using machine learning at the LHC
• Searching for axions with kaon decay at rest
• Axi-Higgs portal Dark Matter via Wess-Zumino mechanism
• Prospects for sub-EW-scale ALP searches via $\gamma +b\bar{b}$ signatures at the LHC using jet substructure techniques
• Search for an Axion-Like Particle in $B\to K^{(\ast )}a(\to \gamma \gamma )$ Decays at Belle
• Search for a narrow resonance with a mass between 10 and 70 GeV decaying to a pair of photons in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Probing axion-like particles coupling to gluons at the LHC