Journal
PHYSICAL REVIEW D
Volume 98, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.98.083516
Keywords
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Funding
- Government of Canada through Industry Canada
- Province of Ontario through the Ministry of Economic Development Innovation
- Natural Sciences and Engineering Research Council of Canada
- National Science Foundation (NSF) [PHY-1066293]
- NSF [PHY-1719271, PHY-1417118, PHY-1520966]
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We show that underground experiments like LUX/LZ, PandaX-II, XENON, and PICO could discover dark matter up to the Planck mass and beyond, with new searches for dark matter that scatters multiple times in these detectors. This opens up significant discovery potential via reanalysis of existing and future data. We also identify a new effect that substantially enhances experimental sensitivity to large dark matter scattering cross sections: while passing through atmospheric or solid overburden, there is a maximum number of scatters that dark matter undergoes, determined by the total number of scattering sites it passes, such as nuclei and electrons. For dark matter heavier than similar to 10(15) GeV, this extends the reach of some published limits and future analyses to exclude large dark matter scattering cross sections, using detectors two kilometers underground.
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