Publications (16)
Probing Benchmark Models of Hidden-Sector Dark Matter with DAMIC-M
M Collaboration, K. Aggarwal, I. Arnquist +39
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…
The DAMIC-M Low Background Chamber
I. Arnquist, N. Avalos, P. Bailly +66
The DArk Matter In CCDs at Modane (DAMIC-M) experiment is designed to search for light dark matter (m<10\,GeV/c) at the Laboratoire Souterrain de Modane (LSM) in France. D…
First Constraints from DAMIC-M on Sub-GeV Dark-Matter Particles Interacting with Electrons
I. Arnquist, N. Avalos, D. Baxter +42
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 integra…
EXCESS workshop: Descriptions of rising low-energy spectra
P. Adari, A. Aguilar-Arevalo, D. Amidei +303
Many low-threshold experiments observe sharply rising event rates of yet unknown origins below a few hundred eV, and larger than expected from known backgrounds. Due to the signifi…
The DAMIC excess from WIMP-nucleus elastic scattering
A. E. Chavarria, H. Lin, K. J. McGuire +2
Two dark matter searches performed with charge-coupled devices (CCDs) in the DAMIC cryostat at SNOLAB reported with high statistical significance the presence of an unidentified so…
Confirmation of the spectral excess in DAMIC at SNOLAB with skipper CCDs
A. Aguilar-Arevalo, I. Arnquist, N. Avalos +69
We present results from a 3.25 kg-day target exposure of two silicon charge-coupled devices (CCDs), each with 24 megapixels and skipper readout, deployed in the DAMIC setup at SNOL…
Results on Low-Mass Weakly Interacting Massive Particles from an 11 kg-day Target Exposure of DAMIC at SNOLAB
A. Aguilar-Arevalo, D. Amidei, D. Baxter +29
We present constraints on the existence of weakly interacting massive particles (WIMPs) from an 11 kg-day target exposure of the DAMIC experiment at the SNOLAB underground laborato…
Precision measurement of Compton scattering in silicon with a skipper CCD for dark matter detection
D. Norcini, N. Castello-Mor, D. Baxter +41
Experiments aiming to directly detect dark matter through particle recoils can achieve energy thresholds of . In this regime, ionization signals from s…
The DAMIC-M Experiment: Status and First Results
I. Arnquist, N. Avalos, P. Bailly +69
The DAMIC-M (DArk Matter In CCDs at Modane) experiment employs thick, fully depleted silicon charged-coupled devices (CCDs) to search for dark matter particles with a target exposu…
Search for Daily Modulation of MeV Dark Matter Signals with DAMIC-M
I. Arnquist, N. Avalos, D. Baxter +37
Dark Matter (DM) particles with sufficiently large cross sections may scatter as they travel through Earth's bulk. The corresponding changes in the DM flux give rise to a character…
Constraints on Sub-MeV Dark Matter from Solar Reflection with DAMIC-M
K. Aggarwal, I. Arnquist, N. Avalos +41
The Sun acts as a natural dark matter accelerator. Galactic halo particles scattering in the solar plasma emerge with velocities well beyond the Galactic escape speed, providing a…
Measurement of the bulk radioactive contamination of detector-grade silicon with DAMIC at SNOLAB
A. Aguilar-Arevalo, D. Amidei, D. Baxter +28
We present measurements of bulk radiocontaminants in the high-resistivity silicon CCDs from the DAMIC at SNOLAB experiment. We utilize the exquisite spatial resolution of CCDs to d…
Characterization of the background spectrum in DAMIC at SNOLAB
A. Aguilar-Arevalo, D. Amidei, I. Arnquist +31
We construct the first comprehensive radioactive background model for a dark matter search with charge-coupled devices (CCDs). We leverage the well-characterized depth and energy r…
Nuclear Recoil Identification in a Scientific Charge-Coupled Device
K. J. McGuire, A. E. Chavarria, N. Castello-Mor +19
Charge-coupled devices (CCDs) are a leading technology in direct dark matter searches because of their eV-scale energy threshold and high spatial resolution. The sensitivity of fut…
First Production of Skipper-CCD Modules for the DAMIC-M Experiment
H. Lin, M. Traina, S. Paul +65
The DAMIC-M experiment will search for sub-GeV dark matter particles with a large array of silicon skipper charge-coupled devices (CCDs) at the Modane Underground Laboratory (LSM)…
Daily Modulation Constraints on Light Dark Matter with DAMIC-M
K. Aggarwal, I. Arnquist, N. Avalos +40
The flux of Hidden Sector particles from the Galactic halo reaching an underground detector can be significantly attenuated by interactions within the Earth for sufficiently large…