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 cm2 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.

DarkSide-20k sensitivity to light dark matter particles / Null, N., Acerbi, F., Adhikari, P., Agnes, P., Ahmad, I., Albergo, S., Albuquerque, I.F.M., Alexander, T., Alton, A.K., Amaudruz, P., Angiolilli, M., Aprile, E., Ardito, R., Atzori Corona, M., Auty, D.J., Ave, M., Avetisov, I.C., Azzolini, O., Back, H.O., Balmforth, Z., et al.. - In: COMMUNICATIONS PHYSICS. - ISSN 2399-3650. - 7:1(2024). [10.1038/s42005-024-01896-z]

DarkSide-20k sensitivity to light dark matter particles

Calabrese, R.;Capra, A.;Castellani, A.;Cocco, V.;Consiglio, L.;D'Aniello, M.;Fiorillo, G.;Gabriele, F.;Gallina, G.;Hill, S.;Hu, J.;Ianni, A.;Korga, G.;La Commara, M.;Lai, M.;Martinez, M.;Moretti, E.;Murphy, M.;Paternoster, G.;Pellegrini, L. A.;Ravinthiran, S.;Rudik, D.;Simeone, M.;Suvorov, Y.;Taylor, A.;Taylor, J.;Tonazzo, A.;Williams, L.;
2024

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 cm2 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.
2024
DarkSide-20k sensitivity to light dark matter particles / Null, N., Acerbi, F., Adhikari, P., Agnes, P., Ahmad, I., Albergo, S., Albuquerque, I.F.M., Alexander, T., Alton, A.K., Amaudruz, P., Angiolilli, M., Aprile, E., Ardito, R., Atzori Corona, M., Auty, D.J., Ave, M., Avetisov, I.C., Azzolini, O., Back, H.O., Balmforth, Z., et al.. - In: COMMUNICATIONS PHYSICS. - ISSN 2399-3650. - 7:1(2024). [10.1038/s42005-024-01896-z]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/1024729
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 20
  • ???jsp.display-item.citation.isi??? ND
social impact