The LDMX Experiment

Article English OPEN
Mans Jeremiah (2017)
  • Publisher: EDP Sciences
  • Journal: EPJ Web of Conferences (issn: 2100-014X)
  • Related identifiers: doi: 10.1051/epjconf/201714201020
  • Subject: Physics | QC1-999
    arxiv: Nuclear Experiment | Astrophysics::Cosmology and Extragalactic Astrophysics

The thermal-relic mechanism for the production of dark-matter in the early universe, combined with the precision measurements of the cosmic microwave background and the lack of observation of dark matter at the LHC, motivates the search for dark matter in the mass range between 1 MeV and 1 GeV. We describe the concept for the Light Dark Matter Experiment (LDMX), which could carry out such a search using the missing-momentum technique. The experiment would utilize a unique high-rate, low-current electron beam with an energy between 4 GeV and 10 GeV, and would have sensitivity to the thermal-relic hypothesis over a wide range of masses below 1 GeV.
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