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/c2. 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/c2 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/c2. With 10 years exposure, the neutrino fog can be reached for WIMP masses around 5 GeV/c2.

DarkSide-20k sensitivity to light dark matter particles / Zykova, M.P., Zuzel, G., Zichichi, A., Zhu, T., Zhang, Y., Zani, A., Zakhary, P., Zabihi, A., Yin, J., Yang, C., Xie, Y., Wright, T., Wojcik, M.M., Wojcik, M., Wojaczynski, R., Williams, L., Westerdale, S., Wang, H., Wang, Y., Walczak, M.B., et al.. - In: COMMUNICATIONS PHYSICS. - ISSN 2399-3650. - ELETTRONICO. - 7:1(2024), pp. 422-422. [10.1038/s42005-024-01896-z]

DarkSide-20k sensitivity to light dark matter particles

Tedesco S.;Blua S.;
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/c2. 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/c2 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/c2. With 10 years exposure, the neutrino fog can be reached for WIMP masses around 5 GeV/c2.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/3013768
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