Optimizing energetic light dark matter searches in dark matter and neutrino experiments
[1];
[2];
[3];
[4]
- Texas A & M Univ., College Station, TX (United States); Univ. of Arizona, Tucson, AZ (United States)
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Chungnam National Univ., Daejeon (Republic of Korea)
- Univ. of Chicago, IL (United States); Jeonbuk National Univ. (Republic of Korea)
Neutrino and dark matter experiments with large-volume ($$ \underset{\sim }{>} $$,2 1 ton) detectors can provide excellent sensitivity to signals induced by energetic light dark matter coming from the present universe. Taking boosted dark matter as a concrete example of energetic light dark matter, we scrutinize two representative search channels, electron scattering and proton scattering including deep inelastic scattering processes, in the context of elastic and inelastic boosted dark matter, in a completely detector-independent manner. In this work, a dark gauge boson is adopted as the particle to mediate the interactions between the Standard Model particles and boosted dark matter. We find that the signal sensitivity of the two channels highly depends on the (mass-)parameter region to probe, so search strategies and channels should be designed sensibly especially at the earlier stage of experiments. In particular, the contribution from the boosted-dark-matter-initiated deep inelastic scattering can be subleading (important) compared to the quasi-elastic proton scattering, if the mass of the mediator is below (above) $$ \mathcal{O} $$(GeV). We demonstrate how to practically perform searches and relevant analyses, employing example detectors such as DarkSide-20k, DUNE, Hyper-Kamiokande, and DeepCore, with their respective detector specifications taken into consideration. For other potential detectors we provide a summary table, collecting relevant information, from which similar studies can be fulfilled readily.
- Research Organization:
- Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP); National Research Foundation of Korea (NRF); National Science Foundation (NSF)
- Grant/Contract Number:
- AC02-07CH11359; FG02-13ER41976; SC0009913; SC0010813; PHY-1607611
- OSTI ID:
- 1614735
- Report Number(s):
- arXiv:2003.07369; EFI-18-20; FERMILAB-PUB-20-112-T; MI-TH-208; oai:inspirehep.net:1785806; TRN: US2106302
- Journal Information:
- Journal of High Energy Physics (Online), Vol. 2020, Issue 7; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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