A search for new physics in low-energy electron recoils from the first LZ exposure
High Energy Physics - Experiment
2024-06-06 v2 Cosmology and Nongalactic Astrophysics
Abstract
The LUX-ZEPLIN (LZ) experiment is a dark matter detector centered on a dual-phase xenon time projection chamber. We report searches for new physics appearing through few-keV-scale electron recoils, using the experiment's first exposure of 60 live days and a fiducial mass of 5.5t. The data are found to be consistent with a background-only hypothesis, and limits are set on models for new physics including solar axion electron coupling, solar neutrino magnetic moment and millicharge, and electron couplings to galactic axion-like particles and hidden photons. Similar limits are set on weakly interacting massive particle (WIMP) dark matter producing signals through ionized atomic states from the Migdal effect.
Cite
@article{arxiv.2307.15753,
title = {A search for new physics in low-energy electron recoils from the first LZ exposure},
author = {The LZ Collaboration and J. Aalbers and D. S. Akerib and A. K. Al Musalhi and F. Alder and C. S. Amarasinghe and A. Ames and T. J. Anderson and N. Angelides and H. M. Araújo and J. E. Armstrong and M. Arthurs and A. Baker and S. Balashov and J. Bang and J. W. Bargemann and A. Baxter and K. Beattie and P. Beltrame and T. Benson and A. Bhatti and A. Biekert and T. P. Biesiadzinski and H. J. Birch and G. M. Blockinger and B. Boxer and C. A. J. Brew and P. Brás and S. Burdin and M. Buuck and M. C. Carmona-Benitez and C. Chan and A. Chawla and H. Chen and J. J. Cherwinka and N. I. Chott and M. V. Converse and A. Cottle and G. Cox and D. Curran and C. E. Dahl and A. David and J. Delgaudio and S. Dey and L. de Viveiros and C. Ding and J. E. Y. Dobson and E. Druszkiewicz and S. R. Eriksen and A. Fan and N. M. Fearon and S. Fiorucci and H. Flaecher and E. D. Fraser and T. M. A. Fruth and R. J. Gaitskell and A. Geffre and J. Genovesi and C. Ghag and R. Gibbons and S. Gokhale and J. Green and M. G. D. van der Grinten and C. R. Hall and S. Han and E. Hartigan-O'Connor and S. J. Haselschwardt and D. Q. Huang and S. A. Hertel and G. Heuermann and M. Horn and D. Hunt and C. M. Ignarra and O. Jahangir and R. S. James and J. Johnson and A. C. Kaboth and A. C. Kamaha and D. Khaitan and A. Khazov and I. Khurana and J. Kim and J. Kingston and R. Kirk and D. Kodroff and L. Korley and E. V. Korolkova and H. Kraus and S. Kravitz and L. Kreczko and B. Krikler and V. A. Kudryavtsev and E. A. Leason and J. Lee and D. S. Leonard and K. T. Lesko and C. Levy and J. Lin and A. Lindote and R. Linehan and W. H. Lippincott and X. Liu and M. I. Lopes and E. Lopez Asamar and W. Lorenzon and C. Lu and D. Lucero and S. Luitz and P. A. Majewski and A. Manalaysay and R. L. Mannino and C. Maupin and M. E. McCarthy and G. McDowell and D. N. McKinsey and J. McLaughlin and E. H. Miller and E. Mizrachi and A. Monte and M. E. Monzani and J. D. Morales Mendoza and E. Morrison and B. J. Mount and M. Murdy and A. St. J. Murphy and D. Naim and A. Naylor and C. Nedlik and H. N. Nelson and F. Neves and A. Nguyen and J. A. Nikoleyczik and I. Olcina and K. C. Oliver-Mallory and J. Orpwood and K. J. Palladino and J. Palmer and N. Parveen and S. J. Patton and B. Penning and G. Pereira and E. Perry and T. Pershing and A. Piepke and S. Poudel and Y. Qie and J. Reichenbacher and C. A. Rhyne and Q. Riffard and G. R. C. Rischbieter and H. S. Riyat and R. Rosero and T. Rushton and D. Rynders and D. Santone and A. B. M. R. Sazzad and R. W. Schnee and S. Shaw and T. Shutt and J. J. Silk and C. Silva and G. Sinev and R. Smith and V. N. Solovov and P. Sorensen and J. Soria and I. Stancu and A. Stevens and K. Stifter and B. Suerfu and T. J. Sumner and M. Szydagis and W. C. Taylor and D. J. Temples and D. R. Tiedt and M. Timalsina and Z. Tong and D. R. Tovey and J. Tranter and M. Trask and M. Tripathi and D. R. Tronstad and W. Turner and A. Vacheret and A. C. Vaitkus and A. Wang and J. J. Wang and Y. Wang and J. R. Watson and R. C. Webb and L. Weeldreyer and T. J. Whitis and M. Williams and W. J. Wisniewski and F. L. H. Wolfs and S. Woodford and D. Woodward and C. J. Wright and Q. Xia and X. Xiang and J. Xu and M. Yeh and E. A. Zweig},
journal= {arXiv preprint arXiv:2307.15753},
year = {2024}
}
Comments
13 pages, 10 figures. See https://tinyurl.com/LZDataReleaseRun1ER for a data release related to this paper