Measuring the Dark Force at the LHC

Abstract

A long-range ``dark force'' has recently been proposed to mediate the dark matter (DM) annihilation. If DM particles are copiously produced at the Large Hadron Collider (LHC), the light dark force mediator will also be produced through radiation. We demonstrate how and how precise we can utilize this fact to measure the coupling constant of the dark force. The light mediator's mass is measured from the ``lepton jet'' it decays to. In addition, the mass of the DM particle is determined using the MT2 technique. Knowing these quantities is critical for calculating the DM relic density.

4 pages, 4 figures; final version for PRL

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Cited by in corpus (32)

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• Hidden Higgs Decaying to Lepton Jets
• A viable QCD axion in the MeV mass range
• A light complex scalar for the electron and muon anomalous magnetic moments
• Breaking the Dark Force
• Lepton Jets from Radiating Dark Matter
• Lepton Jets in (Supersymmetric) Electroweak Processes
• Discovering Higgs Decays to Lepton Jets at Hadron Colliders
• LHC Signatures of a Minimal Supersymmetric Hidden Valley
• The race for supersymmetry: using mT2 for discovery
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• Search for displaced muonic lepton jets from light Higgs boson decay in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
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• Mono-Z': searches for dark matter in events with a resonance and missing transverse energy
• Origins of Hidden Sector Dark Matter II: Collider Physics
• The PAMELA excess from neutralino annihilation in the NMSSM
• Nearly Supersymmetric Dark Atoms
• Implications of a Scalar Dark Force for Terrestrial Experiments
• Supersymmetric Resonant Dark Matter: a Thermal Model for the AMS-02 Positron Excess
• Dark Matter Bound State Formation in Fermionic $Z_2$ DM model with Light Dark Photon and Dark Higgs Boson
• Identifying Dark Matter Event Topologies at the LHC
• Hubble tension as a window on the gravitation of the dark matter sector
• Measuring Invisible Particle Masses Using a Single Short Decay Chain
• Enhanced long-lived dark photon signals at lifetime frontier detectors
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• Singlet Portal to the Hidden Sector
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• Calculations of the Sommerfeld Effect in a Unified Wave Function Framework