| Title: |
Searches for Light Dark Matter and Evidence of Coherent Elastic Neutrino-Nucleus Scattering of Solar Neutrinos with the LUX-ZEPLIN (LZ) Experiment |
| Authors: |
Akerib, D. S.; Musalhi, A. K. Al; Alder, F.; Almquist, B. J.; Amarasinghe, C. S.; Ames, A.; Anderson, T. J.; Angelides, N.; Araújo, H. M.; Armstrong, J. E.; Arthurs, M.; Baker, A.; Balashov, S.; Bang, J.; Bargemann, J. W.; Barillier, E. E.; Bauer, D.; Beattie, K.; Bhatti, A.; Biesiadzinski, T. P.; Birch, H. J.; Bishop, E.; Blockinger, G. M.; Brew, C. A. J.; Brás, P.; Burdin, S.; Carmona-Benitez, M. C.; Carter, M.; Chawla, A.; Chen, H.; Chin, Y. T.; Chott, N. I.; Contreras, S.; Converse, M. V.; Coronel, R.; Cottle, A.; Cox, G.; Curran, D.; Dahl, C. E.; Darlington, I.; Dave, S.; David, A.; Delgaudio, J.; Dey, S.; de Viveiros, L.; Di Felice, L.; Ding, C.; Dobson, J. E. Y.; Druszkiewicz, E.; Dubey, S.; Dunbar, C. L.; Eriksen, S. R.; Fayer, S.; Fearon, N. M.; Fieldhouse, N.; Fiorucci, S.; Flaecher, H.; Fraser, E. D.; Fruth, T. M. A.; Gaemers, P. W.; Gaitskell, R. J.; Geffre, A.; Genovesi, J.; Ghag, C.; Ghamsari, J.; Ghosh, A.; Ghosh, S.; Gibbons, R.; Gokhale, S.; Green, J.; van der Grinten, M. G. D.; Haiston, J. J.; Hall, C. R.; Hall, T.; Hampp, R. H; Haselschwardt, S. J.; Hernandez, M. A.; Hertel, S. A.; Homenides, G. J.; Horn, M.; Huang, D. Q.; Hunt, D.; Jacquet, E.; James, R. S.; Jenkins, K.; Kaboth, A. C.; Kamaha, A. C.; Kannichankandy, M. K.; Khaitan, D.; Khazov, A.; Kim, J.; Kim, Y. D.; Kodroff, D.; Korolkova, E. V.; Kraus, H.; Kravitz, S.; Kreczko, L.; Kudryavtsev, V. A.; Lawes, C.; Leonard, D. S.; Lesko, K. T.; Levy, C.; Lin, J.; Lindote, A.; Lippincott, W. H.; Long, J.; Lopes, M. I.; Lorenzon, W.; Lu, C.; Luitz, S.; Ma, W.; Mahajan, V.; Majewski, P. A.; Manalaysay, A.; Mannino, R. L.; Matheson, R. J.; Maupin, C.; McCarthy, M. E.; McKinsey, D. N.; McLaughlin, J.; McLaughlin, J. B.; McMonigle, R.; Mitra, B.; Mizrachi, E.; Monzani, M. E.; Morå, K.; Morrison, E.; Mount, B. J.; Murdy, M.; Murphy, A. St. J.; Nelson, H. N.; Neves, F.; Nguyen, A.; O'Brien, C. L.; O'Shea, F. H.; Olcina, I.; Oliver-Mallory, K. C.; Orpwood, J.; Oyulmaz, K. Y; Palladino, K. J.; Pannifer, N. J.; Parveen, N.; Patton, S. J.; Penning, B.; Pereira, G.; Perry, E.; Pershing, T.; Piepke, A.; Poudel, S. S.; Qie, Y.; Reichenbacher, J.; Rhyne, C. A.; Rischbieter, G. R. C.; Ritchey, E.; Riyat, H. S.; Rosero, R.; Rowe, N. J.; Rushton, T.; Rynders, D.; Saltão, S.; Santone, D.; Sargeant, I.; Sazzad, A. B. M. R.; Schnee, R. W.; Sehr, G.; Shafer, B.; Shaw, S.; Sherman, W.; Shi, K.; Shutt, T.; Silva, C.; Sinev, G.; Siniscalco, J.; Slivar, A. M.; Smith, R.; Solovov, V. N.; Sorensen, P.; Soria, J.; Sumner, T. J.; Swain, A.; Szydagis, M.; Tiedt, D. R.; Timalsina, M.; Tovey, D. R.; Tranter, J.; Trask, M.; Trengove, K.; Tripathi, M.; Usón, A.; Vaitkus, A. C.; Valentino, O.; Velan, V.; Wang, A.; Wang, J. J.; Wang, Y.; Weeldreyer, L.; Whitis, T. J.; Wild, K.; Williams, M.; Winnicki, J.; Wolf, L.; Wolfs, F. L. H.; Woodford, S.; Woodward, D.; Wright, C. J.; Xia, Q.; Xu, J.; Xu, Y.; Yeh, M.; Yeum, D.; Young, J.; Zha, W.; Zhang, H.; Zhang, T.; Zhou, Y. |
| Publication Year: |
2025 |
| Collection: |
ArXiv.org (Cornell University Library) |
| Subject Terms: |
High Energy Physics - Experiment |
| Description: |
We present searches for light dark matter (DM) with masses 3-9 GeV/$c^2$ in the presence of coherent elastic neutrino-nucleus scattering (CE$ν$NS) from $^{8}$B solar neutrinos with the LUX-ZEPLIN experiment. This analysis uses a 5.7 tonne-year exposure with data collected between March 2023 and April 2025. In an energy range spanning 1-6 keV, we report no significant excess of events attributable to dark matter nuclear recoils, but we observe a significant signal from $^{8}$B CE$ν$NS interactions that is consistent with expectation. We set world-leading limits on spin-independent and spin-dependent-neutron DM-nucleon interactions for masses down to 5 GeV/$c^2$. In the no-dark-matter scenario, we observe a signal consistent with $^{8}$B CE$ν$NS events, corresponding to a $4.5σ$ statistical significance. This is the most significant evidence of $^{8}$B CE$ν$NS interactions and is enabled by robust background modeling and mitigation techniques. This demonstrates LZ's ability to detect rare signals at keV-scale energies. ; 9 pages, 5 page supplement, 8 total figures, 2 tables. The corresponding data release can be found on HEPData, see https://doi.org/10.17182/hepdata.167350 |
| Document Type: |
text |
| Language: |
unknown |
| Relation: |
http://arxiv.org/abs/2512.08065 |
| Availability: |
http://arxiv.org/abs/2512.08065 |
| Accession Number: |
edsbas.256222E4 |
| Database: |
BASE |