_version_ 1866915478247571456
author M Collaboration
Aggarwal, K.
Arnquist, I.
Avalos, N.
Bertou, X.
Castelló-Mor, N.
Chavarria, A. E.
Cuevas-Zepeda, J.
Dastgheibi-Fard, A.
De Dominicis, C.
Deligny, O.
Duarte-Campderros, J.
Estrada, E.
Gaïor, R.
Gkougkousis, E. -L.
Hossbach, T.
Iddir, L.
Kavanagh, B. J.
Kilminster, B.
Lantero-Barreda, A.
Lawson, I.
Letessier-Selvon, A.
Lin, H.
Loaiza, P.
Lopez-Virto, A.
Lou, R.
McGuire, K. J.
Munagavalasa, S.
Noonan, J.
Norcini, D.
Paul, S.
Privitera, P.
Robmann, P.
Roach, B.
Settimo, M.
Smida, R.
Traina, M.
Vilar, R.
Yajur, R.
Venegas-Vargas, D.
Zhu, C.
Zhu, Y.
author_facet M Collaboration
Aggarwal, K.
Arnquist, I.
Avalos, N.
Bertou, X.
Castelló-Mor, N.
Chavarria, A. E.
Cuevas-Zepeda, J.
Dastgheibi-Fard, A.
De Dominicis, C.
Deligny, O.
Duarte-Campderros, J.
Estrada, E.
Gaïor, R.
Gkougkousis, E. -L.
Hossbach, T.
Iddir, L.
Kavanagh, B. J.
Kilminster, B.
Lantero-Barreda, A.
Lawson, I.
Letessier-Selvon, A.
Lin, H.
Loaiza, P.
Lopez-Virto, A.
Lou, R.
McGuire, K. J.
Munagavalasa, S.
Noonan, J.
Norcini, D.
Paul, S.
Privitera, P.
Robmann, P.
Roach, B.
Settimo, M.
Smida, R.
Traina, M.
Vilar, R.
Yajur, R.
Venegas-Vargas, D.
Zhu, C.
Zhu, Y.
contents 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 $e^-$. We find 144 candidates of 2 $e^-$ and 1 candidate of 4 $e^-$, where 141.5 and 0.071, respectively, are expected from background. With no evidence of a DM signal, we place stringent constraints on DM particles with masses between 1 and 1000 MeV/$c^2$ interacting with electrons through an ultra-light or heavy mediator. For large ranges of DM masses below 1 GeV/c$^2$, we exclude theoretically-motivated benchmark scenarios where hidden-sector particles are produced as a major component of DM in the Universe through the freeze-in or freeze-out mechanisms.
format Preprint
id arxiv_https___arxiv_org_abs_2503_14617
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Probing Benchmark Models of Hidden-Sector Dark Matter with DAMIC-M
M Collaboration
Aggarwal, K.
Arnquist, I.
Avalos, N.
Bertou, X.
Castelló-Mor, N.
Chavarria, A. E.
Cuevas-Zepeda, J.
Dastgheibi-Fard, A.
De Dominicis, C.
Deligny, O.
Duarte-Campderros, J.
Estrada, E.
Gaïor, R.
Gkougkousis, E. -L.
Hossbach, T.
Iddir, L.
Kavanagh, B. J.
Kilminster, B.
Lantero-Barreda, A.
Lawson, I.
Letessier-Selvon, A.
Lin, H.
Loaiza, P.
Lopez-Virto, A.
Lou, R.
McGuire, K. J.
Munagavalasa, S.
Noonan, J.
Norcini, D.
Paul, S.
Privitera, P.
Robmann, P.
Roach, B.
Settimo, M.
Smida, R.
Traina, M.
Vilar, R.
Yajur, R.
Venegas-Vargas, D.
Zhu, C.
Zhu, Y.
High Energy Physics - Experiment
Cosmology and Nongalactic Astrophysics
Instrumentation and Methods for Astrophysics
High Energy Physics - Phenomenology
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 $e^-$. We find 144 candidates of 2 $e^-$ and 1 candidate of 4 $e^-$, where 141.5 and 0.071, respectively, are expected from background. With no evidence of a DM signal, we place stringent constraints on DM particles with masses between 1 and 1000 MeV/$c^2$ interacting with electrons through an ultra-light or heavy mediator. For large ranges of DM masses below 1 GeV/c$^2$, we exclude theoretically-motivated benchmark scenarios where hidden-sector particles are produced as a major component of DM in the Universe through the freeze-in or freeze-out mechanisms.
title Probing Benchmark Models of Hidden-Sector Dark Matter with DAMIC-M
topic High Energy Physics - Experiment
Cosmology and Nongalactic Astrophysics
Instrumentation and Methods for Astrophysics
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2503.14617