LHC probes the hidden sector

Abstract

In this note we establish LHC limits on a variety of benchmark models for hidden sector physics using 2011 and 2012 data. First, we consider a "hidden" U(1) gauge boson under which all Standard Model particles are uncharged at tree-level and which interacts with the visible sector either via kinetic mixing or higher dimensional operators. Second, we constrain scalar and pseudo-scalar particles interacting with the Standard Model via dimension five operators and Yukawa interactions, in particular including so-called axion-like particles. In both cases we consider several different final states, including photons, electrons, muons and taus, establishing new constraints for a range of GeV to TeV scale masses. Finally, we also comment on particles with electric charges smaller than e that arise from hidden sector matter.

16 pages, 9 figures; journal version

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• An Exceptional Sector for F-theory GUTs
• Search for high-mass resonances decaying into tau-lepton pairs in pp collisions at sqrt(s) = 7 TeV

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• Feebly-Interacting Particles:FIPs 2020 Workshop Report
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• Phenomenology of a 750 GeV Singlet
• Axion-Like Particles at Future Colliders
• Probing sub-GeV Dark Matter-Baryon Scattering with Cosmological Observables
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• The Forward Physics Facility: Sites, Experiments, and Physics Potential
• Rays of light from the LHC
• A New Flavor of Searches for Axion-Like Particles
• The QCD Axion from Aligned Axions and Diphoton Excess
• Di-photon excess illuminates Dark Matter
• The Minimal Model of a Diphoton Resonance: Production without Gluon Couplings
• Decay photons from the ALP burst of type-II supernovae
• Diphoton Signatures from Heavy Axion Decays at the CERN Large Hadron Collider
• The Search for Feebly-Interacting Particles
• The High Quality QCD Axion and the LHC
• Knocking on New Physics' door with a Scalar Resonance
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• The 750 GeV $S$-cion: Where else should we look for it?
• Higgs singlet boson as a diphoton resonance in a vector-like quark model
• Vector Leptoquarks and the 750 GeV Diphoton Resonance at the LHC
• Self-interacting asymmetric dark matter coupled to a light massive dark photon
• New Constraints on Millicharged Particles from Cosmic-ray Production
• Non-Resonant Searches for Axion-Like Particles at the LHC
• 750 GeV Diphotons from a D3-brane
• On the 750 GeV di-photon excess
• Dark Matter meets Quantum Gravity
• Asymmetric Dark Matter in the Sun and the Diphoton Excess at the LHC
• 750 GeV Resonance in the Dark Left-Right Model
• Heavy Axion Opportunities at the DUNE Near Detector
• Symmetries Behind the 750 GeV Diphoton Excess
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• Running after Diphoton
• FORMOSA: Looking Forward to Millicharged Dark Sectors
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• Minicharged Particles from the Sun: A Cutting-Edge Bound
• Gravity-mediated (or Composite) Dark Matter Confronts Astrophysical Data
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• Signals from dark atom formation in halos
• Extending the constraint for axion-like particles as resonances at the LHC and laser beam experiments
• Search for dark matter in association with an energetic photon in pp collisions at $\sqrt{s}$ = 13 TeV with the ATLAS detector
• Light in the beam dump -- ALP production from decay photons in proton beam-dumps
• Axion Couplings in Grand Unified Theories
• Nonresonant Searches for Axion-Like Particles in Vector Boson Scattering Processes at the LHC
• An O(750) GeV Resonance and Inflation
• Dark sector shining through 750 GeV dark Higgs boson at the LHC
• Dark radiation constraints on portal interactions with hidden sectors
• Limits on the abundance of millicharged particles bound to matter
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• Electroweak ALP Searches at a Muon Collider
• Probing axion-like particles with $\gamma \gamma$ final states from vector boson fusion processes at the LHC
• Scalegenesis and fermionic dark matters in the flatland scenario
• Detecting an axion-like particle with machine learning at the LHC
• Dynamics of millicharged dark matter in supernova remnants
• FLArE up dark sectors with EM form factors at the LHC Forward Physics Facility
• Confronting a New Three-loop Seesaw Model with the 750 GeV Diphoton Excess
• Axions: From Magnetars and Neutron Star Mergers to Beam Dumps and BECs
• A New Probe of Dark Sector Dynamics at the LHC
• A force beyond the Standard Model - Status of the quest for hidden photons
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• Point Sources from Dissipative Dark Matter
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• Interpreting a 750 GeV Diphoton Resonance
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• Enhancing Searches for Heavy QCD Axions via Dimuon Final States
• Uncovering light scalars with exotic Higgs decays to bbmumu
• Searching for axionlike particle at future $ep$ colliders
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• Electroweak precision test of axion-like particles
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• Can Dark Matter explain the Braking Index of Neutron Stars?
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• Science and Project Planning for the Forward Physics Facility in Preparation for the 2024-2026 European Particle Physics Strategy Update
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• Light Dark Matter Annihilation and Scattering in LHC Detectors
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• Probing Dark-ALP Portals at Future $e^{+}{e}^{-}$ Colliders
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• Supersymmetry in Hadron Spectroscopy and Solitons in 2 Dimensional Fermionic Media