Search for Reactor-Produced Millicharged Particles with Skipper-CCDs at the CONNIE and Atucha-II Experiments
Year: 2025
Type: article
Abstract: Millicharged particles, proposed by various extensions of the standard model, can be created in pairs by high-energy photons within nuclear reactors and can interact electromagnetically with electrons in matter. Recently, the existence of a plasmon peak in the interaction cross section with silicon in the eV range was highlighted as a promising approach to enhance low-energy sensitivities. The CONNIE and Atucha-II reactor neutrino experiments utilize Skipper-CCD sensors, which enable the detection of interactions in the eV range. We present world-leading limits on the charge of millicharged particles within a mass range spanning 6 orders of magnitude, derived through a comprehensive analysis and the combination of data from both experiments.
DOI: 10.5167/uzh-281294
Authors: Aguilar-Arevalo, Alexis A, D’Olivo, Juan Carlos, Sarkis, Youssef, Avalos, Nicolas, Bertou, Xavier, Bellino, Pablo, Bonifazi, Carla, Botti, Ana, Cancelo, Gustavo, Estrada, Juan, Ford, Richard, Kuk, Kevin, Lathrop, Andrew, Tiffenberg, Javier, Cababié, Mariano, Cervantes-Vergara, Brenda A, Chavez, Claudio, Chierchie, Fernando, Delgado, David, Depaoli, Eliana, dos Anjos, João, Lima, Herman P., Moroni, Guillermo Fernandez, Neto, Aldo R. Fernandes, Kilminster, Ben, Lemos, Patrick, Maslova, Katherine, Nasteva, Irina, Oliveira, Ana Carolina, Ventura, Pedro, et al
Language: English
Topic: Neutrino Physics Research
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7115018653
FWCI:
Cites:
Cited by:
Related to: