Published April 28, 2023
| Version v1
Journal article
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First Constraints from DAMIC-M on Sub-GeV Dark-Matter Particles Interacting with Electrons
Creators
- Arnquist, I.1
- Avalos, N.2
- Baxter, D.3
- Bertou, X.2
- Castelló-Mor, N.4
- Chavarria, A. E.5
- Cuevas-Zepeda, J.3
- Cortabitarte Gutiérrez, J.4
- Duarte-Campderros, J.4
- Dastgheibi-Fard, A.6
- Deligny, O.7
- De Dominicis, C.8
- Estrada, E.9
- Gadola, N.10
- Gaïor, R.8
- Hossbach, T.1
- Iddir, L.8
- Khalil, L.8
- Kilminster, B.10
- Lantero-Barreda, A.4
- Matalon, A.3
- Munagavalasa, S.3
- Norcini, D.3
- Paul, S.3
- Privitera, P.3
- Ramanathan, K.3
- Smida, R.3
- Thomas, R.3
- Yajur, R.3
- 1. Pacific Northwest National Laboratory
- 2. Universidad Nacional de Cuyo
- 3. University of Chicago
- 4. Universidad de Cantabria
- 5. University of Washington
- 6. Université Grenoble-Alpes
- 7. Université Paris-Saclay
- 8. Sorbonne Université
- 9. Comisión Nacional de Energía Atómica
- 10. Universität Zürich Physik Institut
Description
We report constraints on sub-GeV dark matter particles interacting with electrons from the first underground operation of DAMIC-M detectors. The search is performed with an integrated exposure of 85.23 g days, and exploits the subelectron charge resolution and low level of dark current of DAMIC-M charge-coupled devices (CCDs). Dark-matter-induced ionization signals above the detector dark current are searched for in CCD pixels with charge up to $7e^−$. With this dataset we place limits on dark matter particles of mass between 0.53 and $1000 MeV/c^2$, excluding unexplored regions of parameter space in the mass ranges $[1.6,1000] MeV/c^2$ and $[1.5,15.1] MeV/c^2$ for ultralight and heavy mediator interactions, respectively.
Notes
Due to the large number of authors, only the first 20 and the University of Chicago authors are included on the above author list. Please download the article for the complete list of authors.
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Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.130.171003
- Other
- oai:uchicago.tind.io:14251
Funding
- European Research Council
- 788137
- National Science Foundation
- PHY-1812654
- National Science Foundation
- PHY-2110585
- University of Chicago
- MCIN/ AEI /10.13039/501100011033
- PID2019–109829GB-I00
- Agencia Nacional de Promoción Científica y Tecnológica
- PICT-2018-03069
- Swiss National Science Foundation
- U.S. Department of Energy
- DE-AC02-05CH11231