Speaker
Description
The Light Dark Matter eXperiment (LDMX) is a ‘missing momentum’ experiment searching for dark matter in the MeV to GeV-equivalent mass range. LDMX plans to use a high-repetition, low-current 8 GeV electron beam along with a high-Z target to potentially produce DM through high-statistics electron-nucleus interactions. Using a sophisticated system of complementary taggers, trackers, and calorimeters, the events from the electron-beam interactions can be reconstructed and used to determine if the event topology is compatible with DM production. The missing momentum method is largely agnostic to DM production models, and the detailed event data available enables LDMX to extend its reach to other rare-event and Beyond the Standard Model searches.
In this talk, I will describe the LDMX baseline design, as well as recent developments in the construction of a prototype detector which is expected to begin testing by the end of 2025. I will also outline in brief the rich physics program available with the LDMX setup, as well as the event characterization and analysis strategy. I will highlight the contributions from the LDMX group at Lund University as well as discussing the roadmap for the near future.
