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Settimo, M. Traina, N. Avalos, N. Castell\\'o-Mor, O. Deligny, P. Loaiza, P. Privitera, P. Robmann, R. Ga\\\"ior, R. Lou, R. Smida, R. Vilar, R. Yajur, S. Munagavalasa, S. Paul, T. Hossbach, X. Bertou, Y. Zhu","submitted_at":"2025-03-18T18:13:21Z","abstract_excerpt":"We report on a search for sub-GeV dark matter (DM) particles interacting with electrons using the DAMIC-M prototype detector at the Modane Underground Laboratory. The data feature a significantly lower detector single $e^-$ rate (factor 50) compared to our previous search, while also accumulating a ten times larger exposure of $\\sim$1.3 kg-day. DM interactions in the skipper charge-coupled devices (CCDs) are searched for as patterns of two or three consecutive pixels with a total charge between 2 and 4 $e^-$. 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