Searching. Please wait…
1580
37
170
29264
4420
2603
347
391
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.
Fuente: Physical Review Letters, 2023, 130(17), 171003
Publisher: American Physical Society
Publication date: 01/04/2023
No. of pages: 7
Publication type: Article
DOI: 10.1103/PhysRevLett.130.171003
ISSN: 0031-9007,1079-7114
Spanish project: PID2019?109829GB-I00
Publication Url: https://doi.org/10.1103/PhysRevLett.130.171003
Consult in UCrea Read publication
ARNQUIST, I.
NURIA CASTELLÓ MOR
JUAN CORTABITARTE GUTIERREZ
JORGE DUARTE CAMPDERROS
AGUSTIN LANTERO BARREDA
MARIA AMPARO LOPEZ VIRTO
IVAN VILA ALVAREZ
ROCIO VILAR CORTABITARTE
Back