@article{10902/31942,
year = {2023},
month = {4},
url = {https://hdl.handle.net/10902/31942},
abstract = {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/c², excluding unexplored regions of parameter space in the mass ranges [1.6; 1000] MeV/c² and [1.5; 15.1] MeV/c² for ultralight and heavy mediator interactions, respectively.},
organization = {IFCA was supported by project PID2019–109829GB-I00 funded by MCIN/ AEI /10.13039/501100011033.},
publisher = {American Physical Society},
publisher = {Physical Review Letters, 2023, 130(17), 171003},
title = {First constraints from DAMIC-M on Sub-GeV dark-matter particles interacting with electrons},
author = {Arnquist, I. and Castelló Mor, Nuria and Cortabitarte Gutiérrez, Juan and Duarte Campderros, Jorge and Lantero Barreda, Agustín and López Virto, María Amparo and Vila Álvarez, Iván  and Vilar Cortabitarte, Rocío},
}