液氩时间投影室中核反冲的方向性
仪器与探测器
2024-01-12 v1
摘要
以弱相互作用大质量粒子（WIMP）形式的暗物质直接搜寻，通过探测 WIMP 弹性散射在靶材料中产生的核反冲（NR）来进行。一种用于暗物质直接搜寻的有前景的实验策略是采用氩双相时间投影室（TPC）。TPC 的优势之一是能够探测 NR 产生的闪烁与电荷信号。此外，TPC 中漂移电场的存在打破了旋转对称性：漂移场与反冲核动量之间的夹角可能影响液氩中的电荷复合概率，进而影响两个信号通道间的相对平衡。这一事实可能使探测器对 WIMP 诱发信号的方向性敏感，从而为未来旨在发现的搜寻提供明确的年度与日度调制特征。反冲方向性（ReD）实验旨在探测此种方向敏感性。ReD 的 TPC 在 INFN Laboratori Nazionali del Sud 接受中子辐照，并采集了具有已知反冲方向的 72 keV NR 数据。采用了 Cataudella 等人提出的依赖方向性的液氩电荷复合模型，并进行了似然统计分析，结果未显示探测器响应与反冲方向有显著依赖。初始电离云的各向异性比 R 估计为 1.037 ± 0.027，在 90% 置信水平下上限为 R < 1.072。
引用
@article{arxiv.2307.15454,
title = {Directionality of nuclear recoils in a liquid argon time projection chamber},
author = {20k Collaboration and P. Agnes and I. Ahmad and S. Albergo and I. F. M. Albuquerque and T. Alexander and A. K. Alton and P. Amaudruz and M. Atzori Corona and M. Ave and I. Ch. Avetisov and O. Azzolini and H. O. Back and Z. Balmforth and A. Barrado-Olmedo and P. Barrillon and A. Basco and G. Batignani and V. Bocci and W. M. Bonivento and B. Bottino and M. G. Boulay and J. Busto and M. Cadeddu and A. Caminata and N. Canci and G. Cappello and A. Capra and S. Caprioli and M. Caravati and N. Cargioli and M. Carlini and P. Castello and V. Cataudella and P. Cavalcante and S. Cavuoti and S. Cebrian and J. M. Cela Ruiz and S. Chashin and A. Chepurnov and E. Chyhyrynets and L. Cifarelli and D. Cintas and M. Citterio and B. Cleveland and V. Cocco and E. Conde Vilda and L. Consiglio and S. Copello and G. Covone and M. Czubak and M. D'Aniello and S. D'Auria and M. D. Da Rocha Rolo and S. Davini and A. de Candia and S. De Cecco and D. De Gruttola and G. De Filippis and D. Dell'Aquila and S. De Pasquale and G. De Rosa and G. Dellacasa and A. V. Derbin and A. Devoto and F. Di Capua and L. Di Noto and C. Dionisi and P. Di Stefano and G. Dolganov and F. Dordei and A. Elersich and E. Ellingwood and T. Erjavec and M. Fernandez Diaz and G. Fiorillo and P. Franchini and D. Franco and N. Funicello and F. Gabriele and D. Gahan and C. Galbiati and G. Gallina and G. Gallus and M. Garbini and P. Garcia Abia and A. Gendotti and C. Ghiano and C. Giganti and G. K. Giovanetti and V. Goicoechea Casanueva and A. Gola and G. Grauso and G. Grilli di Cortona and A. Grobov and M. Gromov and M. Guan and M. Guerzoni and M. Gulino and C. Guo and B. R. Hackett and A. L. Hallin and A. Hamer and M. Haranczyk and T. Hessel and S. Hill and S. Horikawa and F. Hubaut and J. Hucker and T. Hugues and An. Ianni and V. Ippolito and C. Jillings and S. Jois and P. Kachru and N. Kemmerich and A. A. Kemp and C. L. Kendziora and M. Kimura and I. Kochanek and K. Kondo and G. Korga and S. Koulosousas and A. Kubankin and M. Kuss and M. Kuzniak and M. La Commara and M. Lai and E. Le Guirriec and E. Leason and A. Leoni and X. Li and L. Lidey and M. Lissia and L. Luzzi and O. Lychagina and O. Macfadyen and I. N. Machulin and S. Manecki and I. Manthos and L. Mapelli and A. Margotti and S. M. Marik and C. Mariani and J. Maricic and A. Marini and M. Martínez and C. J. Martoff and G. Matteucci and K. Mavrokoridis and A. B. McDonald and A. Messina and R. Milincic and A. Mitra and A. Moharana and J. Monroe and E. Moretti and M. Morrocchi and T. Mróz and V. N. Muratova and C. Muscas and P. Musico and R. Nania and M. Nessi and G. Nieradka and K. Nikolopoulos and J. Nowak and K. Olchansky and A. Oleinik and V. Oleynikov and P. Organtini and A. Ortiz de Solórzano and L. Pagani and M. Pallavicini and L. Pandola and E. Pantic and E. Paoloni and G. Paternoster and P. A. Pegoraro and K. Pelczar and V. Pesudo and S. Piacentini and N. Pino and A. Pocar and D. M. Poehlmann and S. Pordes and P. Pralavorio and D. Price and F. Ragusa and Y. Ramachers and M. Razeti and A. L. Renshaw and M. Rescigno and F. Retiere and L. P. Rignanese and C. Ripoli and A. Rivetti and A. Roberts and C. Roberts and J. Rode and G. Rogers and L. Romero and M. Rossi and A. Rubbia and M. A. Sabia and P. Salomone and E. Sandford and S. Sanfilippo and D. Santone and R. Santorelli and C. Savarese and E. Scapparone and G. Schillaci and F. G. Schuckman and G. Scioli and M. Simeone and P. Skensved and M. D. Skorokhvatov and O. Smirnov and T. Smirnova and B. Smith and A. Sosa and F. Spadoni and M. Spangenberg and R. Stefanizzi and A. Steri and V. Stornelli and S. Stracka and M. Stringer and S. Sulis and A. Sung and Y. Suvorov and A. M. Szelc and R. Tartaglia and A. Taylor and J. Taylor and S. Tedesco and G. Testera and K. Thieme and T. N. Thorpe and A. Tonazzo and A. Tricomi and E. V. Unzhakov and T. Vallivilayil John and M. Van Uffelen and T. Viant and S. Viel and R. B. Vogelaar and J. Vossebeld and M. Wada and M. B. Walczak and H. Wang and Y. Wang and S. Westerdale and L. Williams and I. Wingerter-Seez and R. Wojaczynski and Ma. M. Wojcik and T. Wright and Y. Xie and C. Yang and A. Zabihi and P. Zakhary and A. Zani and A. Zichichi and G. Zuzel and M. P. Zykova},
journal= {arXiv preprint arXiv:2307.15454},
year = {2024}
}
备注
20 pages, 10 figures, submitted to Eur. Phys. J. C