Events Calendar
Light dark matter and the LDMX experiment
Friday April 7, 2023
3:30 pm
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Presenter: | Dr. Bertrand Echenard (Caltech) |
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Series: | Physics and Astronomy Colloquium | |
Abstract: | Elucidating the nature of dark matter is one of the greatest challenges of contemporary fundamental physics. Among the vast landscape of theoretical possibilities, dark matter originating as a thermal relic in the early Universe presents many appealing features. This paradigm also greatly restricts the range of possible dark matter masses to the ~ MeV - 100 TeV region. Considerable experimental attention has been given to Weakly Interacting Massive Particles in the upper end of this window, while sub-GeV dark matter remains largely unexplored. Interestingly, light dark matter could be realized in simple, predictive models testable in accelerator-based experiments. The Light Dark Matter eXperiment (LDMX) is a proposed electron-beam fixed-target experiment using a missing momentum approach to probe dark matter in the MeV-GeV range with unique sensitivity, and provide information about its mass if a signal is observed. The experiment can also probe a large variety of models of light new physics and perform measurements critical for next-generation neutrino experiments. In this talk we will review the physics of light dark matter, the main experimental challenges in accelerator-based searches, and the LDMX approach to uniquely explore these possibilities.abmool | |
Host: | Dinesh Loomba | |
Location: | PAIS 1100 and via Zoom. Please take the Satisfaction Survey | |