DarkSide-50 暗物质探测器的长期时间稳定性
高能物理 - 实验
2024-05-24 v3 宇宙学与河外天体物理
仪器与探测器
摘要
暗物质探测器在数年时间尺度上的稳定性是一项关键要求，因为需要大曝光量以实现有竞争力的灵敏度。尤其关键的是使探测器能够潜在探测任何年事件率调制，这是预期的暗物质信号。在这项工作中，我们展示了 DarkSide-50 双相氩时间投影室在近三年的低放射性氩运行期间的性能历史。我们特别关注能够实现亚 keV 能量沉积灵敏度的电致发光信号。发现电致发光产额的稳定性优于 0.5%。最后，我们展示了在亚 keV 区域附近观测事件率的时间演化，其与本底预测一致。
引用
@article{arxiv.2311.18647,
title = {Long-term temporal stability of the DarkSide-50 dark matter detector},
author = {50 Collaboration and P. Agnes and I. F. M. Albuquerque and T. Alexander and A. K. Alton and M. Ave and H. O. Back and G. Batignani and K. Biery and V. Bocci and W. M. Bonivento and B. Bottino and S. Bussino and M. Cadeddu and M. Cadoni and F. Calaprice and A. Caminata and M. D. Campos and N. Canci and M. Caravati and N. Cargioli and M. Cariello and M. Carlini and V. Cataudella and P. Cavalcante and S. Cavuoti and S. Chashin and A. Chepurnov and C. Cicalò and G. Covone and D. D'Angelo and S. Davini and A. De Candia and S. De Cecco and G. De Filippis and G. De Rosa and A. V. Derbin and A. Devoto and M. D'Incecco and C. Dionisi and F. Dordei and M. Downing and D. D'Urso and M. Fairbairn and G. Fiorillo and D. Franco and F. Gabriele and C. Galbiati and C. Ghiano and C. Giganti and G. K. Giovanetti and A. M. Goretti and G. Grilli di Cortona and A. Grobov and M. Gromov and M. Guan and M. Gulino and B. R. Hackett and K. Herner and T. Hessel and B. Hosseini and F. Hubaut and T. Hugues and E. V. Hungerford and An. Ianni and V. Ippolito and K. Keeter and C. L. Kendziora and M. Kimura and I. Kochanek and D. Korablev and G. Korga and A. Kubankin and M. Kuss and M. Kuźniak and M. La Commara and M. Lai and X. Li and M. Lissia and G. Longo and O. Lychagina and I. N. Machulin and L. P. Mapelli and S. M. Mari and J. Maricic and A. Messina and R. Milincic and J. Monroe and M. Morrocchi and X. Mougeot and V. N. Muratova and P. Musico and A. O. Nozdrina and A. Oleinik and F. Ortica and L. Pagani and M. Pallavicini and L. Pandola and E. Pantic and E. Paoloni and K. Pelczar and N. Pelliccia and S. Piacentini and A. Pocar and D. M. Poehlmann and S. Pordes and S. S. Poudel and P. Pralavorio and D. D. Price and F. Ragusa and M. Razeti and A. Razeto and A. L. Renshaw and M. Rescigno and J. Rode and A. Romani and D. Sablone and O. Samoylov and E. Sandford and W. Sands and S. Sanfilippo and C. Savarese and B. Schlitzer and D. A. Semenov and A. Shchagin and A. Sheshukov and M. D. Skorokhvatov and O. Smirnov and A. Sotnikov and S. Stracka and Y. Suvorov and R. Tartaglia and G. Testera and A. Tonazzo and E. V. Unzhakov and A. Vishneva and R. B. Vogelaar and M. Wada and H. Wang and Y. Wang and S. Westerdale and M. M. Wojcik and X. Xiao and C. Yang and G. Zuzel},
journal= {arXiv preprint arXiv:2311.18647},
year = {2024}
}
备注
13 pages, 5 figures