来自 LUX-ZEPLIN 实验对宇宙射线提升暗物质的新约束
高能物理 - 实验
2025-06-19 v2
摘要
虽然双相氦气时间投影阵列(TPC)一直推动了对弱相互作用大质量粒子(WIMP)在 GeV/c^2 到 TeV/c^2质量尺度上的灵敏度，但亚 GeV/c^2暗物质粒子的探测范围受限于核反冲能量检测阈值的限制。探寻更轻质量候选粒子的一种方法是考虑它们因与银河中宇宙射线碰撞而获得额外动能，使得其诱导的信号能量超过 nominal 阈值。在本信件中，我们报告了使用 LUX-ZEPLIN(LZ)实验获得的 4.2 吨年组合暴露量进行的 CRDM 搜索的首次结果。我们观察到没有超过预期背景的超出，并在 90%置信水平下对亚 GeV/c^2质量的自旋无关 CRDM-原子核交叉截面施加了世界领先的约束，最小值为 3.9 × 10^{-33} cm^2。
关键词
引用
@article{arxiv.2503.18158,
title = {New constraints on cosmic ray-boosted dark matter from the LUX-ZEPLIN experiment},
author = {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. Araujo and J. E. Armstrong and M. Arthurs and A. Baker and S. Balashov and J. Bang and J. W. Bargemann and E. E. Barillier and K. Beattie and A. Bhatti and A. Biekert and T. P. Biesiadzinski and H. J. Birch and E. Bishop and G. M. Blockinger and B. Boxer and C. A. J. Brew and P. Bras and S. Burdin and M. Buuck and M. C. Carmona-Benitez and M. Carter and A. Chawla and H. Chen and Y. T. Chin and N. I. Chott and M. V. Converse and R. Coronel 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 L. Di Felice and C. Ding and J. E. Y. Dobson and E. Druszkiewicz and S. Dubey and S. R. Eriksen and A. Fan and N. M. Fearon and N. Fieldhouse 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 J. J. Haiston and C. R. Hall and S. Han and E. Hartigan-O'Connor and S. J. Haselschwardt and M. A. Hernandez and S. A. Hertel and G. Heuermann and G. J. Homenides and M. Horn and D. Q. Huang and D. Hunt and E. Jacquet and R. S. James and J. Johnson and A. C. Kaboth and A. C. Kamaha and M. Kannichankandy and D. Khaitan and A. Khazov and I. Khurana and J. Kim and Y. D. 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 V. A. Kudryavtsev and D. S. Leonard and K. T. Lesko and C. Levy and J. Lin and A. Lindote and W. H. Lippincott and M. I. Lopes and W. Lorenzon and C. Lu 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 J. B. McLaughlin and R. McMonigle and E. Mizrachi and A. Monte and M. E. Monzani and E. Morrison and B. J. Mount and M. Murdy and A. St. J. Murphy and A. Naylor and H. N. Nelson and F. Neves and A. Nguyen and C. L. O'Brien and I. Olcina and K. C. Oliver-Mallory and J. Orpwood and K. Y Oyulmaz and K. J. Palladino and J. Palmer and N. J. Pannifer and N. Parveen and S. J. Patton and B. Penning and G. Pereira and E. Perry and T. Pershing and A. Piepke and Y. Qie and J. Reichenbacher and C. A. Rhyne and Q. Riffard and G. R. C. Rischbieter and E. Ritchey 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 G. Sehr and B. Shafer and S. Shaw and T. Shutt and J. J. Silk and C. Silva and G. Sinev and J. Siniscalco and R. Smith and V. N. Solovov and P. Sorensen and J. Soria and A. Stevens and K. Stifter and B. Suerfu and T. J. Sumner and M. Szydagis and D. R. Tiedt and M. Timalsina and Z. Tong and D. R. Tovey and J. Tranter and M. Trask and M. Tripathi and A. Vacheret and A. C. Vaitkus and O. Valentino and V. Velan and A. Wang and J. J. Wang and Y. Wang and J. R. Watson and L. Weeldreyer and T. J. Whitis and K. Wild and M. Williams and W. J. Wisniewski and L. Wolf and F. L. H. Wolfs and S. Woodford and D. Woodward and C. J. Wright and Q. Xia and J. Xu and Y. Xu and M. Yeh and D. Yeum and W. Zha},
journal= {arXiv preprint arXiv:2503.18158},
year = {2025}
}