DOE OSTI · 2467482
DarkSide-20k sensitivity to light dark matter particles
Abstract
The dual-phase liquid argon time projection chamber is presently one of the leading technologies to search for dark matter particles with masses below 10 GeV c$^{−2}$. This was demonstrated by the DarkSide-50 experiment with approximately 50 kg of low-radioactivity liquid argon as target material. The next generation experiment DarkSide-20k, currently under construction, will use 1,000 times more argon and is expected to start operation in 2027. Based on the DarkSide-50 experience, here we assess the DarkSide-20k sensitivity to models predicting light dark matter particles, including Weakly Interacting Massive Particles (WIMPs) and sub-GeV c$^{−2}$ particles interacting with electrons in argon atoms. With one year of data, a sensitivity improvement to dark matter interaction cross-sections by at least one order of magnitude with respect to DarkSide-50 is expected for all these models. A sensitivity to WIMP–nucleon interaction cross-sections below 1 × 10$^{−42}$ cm$^{2}$ is achievable for WIMP masses above 800 MeV c$^{−2}$. With 10 years exposure, the neutrino fog can be reached for WIMP masses around 5 GeV c$^{−2}$.
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Acerbi, F. [Fondazione Bruno Kessler (FBK), Povo (Italy); DarkSide-20k Collaboration. et al.], Adhikari, P., Agnes, P. (ORCID:0000000332044924), Ahmad, I., Albergo, S., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Amaudruz, P., Angiolilli, M., Aprile, E., Ardito, R., Atzori Corona, M. (ORCID:0000000150923602), Auty, D. J., Ave, M., Avetisov, I. C., Azzolini, O., Back, Henning O., Balmforth, Z., Barrado Olmedo, A., Barrillon, P., Batignani, G., Bhowmick, P., Blua, S., Bocci, V., Bonivento, W., Bottino, B. (ORCID:0000000230172167), Boulay, M. G., Buchowicz, A., Bussino, S., Busto, J., Cadeddu, M., Cadoni, M., Calabrese, R. (ORCID:0000000243633372), Camillo, V., Caminata, A., Canci, N., Capra, A., Caravati, M., Cárdenas-Montes, M., Cargioli, N. (ORCID:0000000265155850), Carlini, M., Castellani, A., Castello, P., Cavalcante, P., Cebrian, S., Cela Ruiz, J. M., Chashin, S., Chepurnov, A., Cifarelli, L., Cintas, D., Citterio, M., Cleveland, B., Coadou, Y., Cocco, V., Colaiuda, D., Conde Vilda, E., Consiglio, L., Costa, B. S., Czubak, M., D’Aniello, M., D’Auria, S., Da Rocha Rolo, M. D., Darbo, G., Davini, S., De Cecco, S., De Guido, G., Dellacasa, G., Derbin, A. V., Devoto, A., Di Capua, F., Di Ludovico, A., Di Noto, L., Di Stefano, P., Dias, L. K., Díaz Mairena, D., Ding, X., Dionisi, C., Dolganov, G., Dordei, F., Dronik, V., Elersich, A., Ellingwood, E., Erjavec, T., Fernandez Diaz, M., Ficorella, A., Fiorillo, G., Franchini, P., Franco, D., Frandini Gatti, H., Frolov, E., Gabriele, F., Gahan, D., Galbiati, C., Galiński, G., Gallina, G., Gallus, G., Garbini, M., Garcia Abia, P., Gawdzik, A.. 2024-12-26. DarkSide-20k sensitivity to light dark matter particles. https://doi.org/10.1038/s42005-024-01896-z
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