A novel way to search for light dark matter in lepton beam-dump experiments

Abstract

A novel mechanism to produce and detect Light Dark Matter in experiments making use of GeV electrons (and positrons) impinging on a thick target (beam-dump) is proposed. The positron-rich environment produced by the electromagnetic shower allows to produce an $A^{\prime }$ via non-resonant ($e^{+}+e^{-}\to \gamma +A^{\prime }$) and resonant ($e^{+}+e^{-}\to A^{\prime }$) annihilation on atomic electrons. The latter mechanism, for some selected kinematics, results in a larger sensitivity with respect to limits derived by the commonly used $A^{\prime }-strahlung$. This idea, applied to Beam Dump Experiments and {\it active} Beam Dump Experiments pushes down the current limits by an order of magnitude.

5 pages, 3 figures

References in corpus (14)

• Search for Invisible Decays of a Dark Photon Produced in e+e- Collisions at BaBar
• LHC Signals for a SuperUnified Theory of Dark Matter
• Strong Constraints on Sub-GeV Dark Matter from SLAC Beam Dump E137
• US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
• New Electron Beam-Dump Experiments to Search for MeV to few-GeV Dark Matter
• Light dark matter in neutrino beams: production modelling and scattering signatures at MiniBooNE, T2K and SHiP
• Search for vector mediator of Dark Matter production in invisible decay mode
• Proposal to search for a dark photon in $e^{+}$ on target collisions at DA$\Phi$NE linac
• Testing GeV-Scale Dark Matter with Fixed-Target Missing Momentum Experiments
• Dark photon production through positron annihilation in beam-dump experiments
• Resonant production of dark photons in positron beam dump experiments
• The Validity of the Weizsacker-Williams Approximation and the Analysis of Beam Dump Experiments: Production of a New Scalar Boson
• On the Origin of Light Dark Matter Species
• Searching for a dark photon: Project of the experiment at VEPP-3

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• Inelastic Dark Matter at the Fermilab Short Baseline Neutrino Program
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