The SMU SuperCDMS Program

SMU SuperCDMS 计划

• 批准号: 2012811
• 负责人: Jodi Cooley
• 金额: $ 75.05万
• 依托单位: Southern Methodist University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-07-01 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2012811&HistoricalAwards=false
• 关键词: SMU; SuperCDMS; Program

Astrophysical observations and cosmological data give strong evidence that nearly a quarter of the Universe consists of dark matter. Weakly interacting massive particles (WIMPs) and axions have been proposed as theoretically favored candidates for dark matter. Despite the strong evidence for the existence of dark matter, neither WIMPs nor axions have been conclusively detected. This award will provide funding for the research program at SMU that is dedicated to advancing the SuperCDMS SNOLAB experiment towards its goal of exploring the low mass ( 10 GeV/c^2) dark matter region, and ultimately to having sensitivity to WIMP-nucleon cross sections where solar neutrino-nucleus scattering becomes significant (the so-called “neutrino floor”). Part of achieving this objective is an already-planned upgrade of the experiment that will include more massive detectors made of Ge and Si crystals operated in both an ultra-sensitive high-voltage mode and standard voltage mode. The educational objective of this award is to create research opportunities for undergraduate students at SMU and foster relationships with the North Texas community. The approach is to enhance the Engaged Learning program at SMU by providing support for 1 - 2 undergraduate students to engage in research during both the summer and academic year. To foster relationships with the community of North Texas, the group will volunteer their time participating in a variety of mentoring activities.During the next three years, several critical milestones must be achieved to advance the SuperCDMS SNOLAB program. These include installing the SuperCDMS SNOLAB experiment, commissioning and operating the experiment, publishing results from early science taken at the CUTE detector test facility, and a surface assay of materials for the purpose of developing a radon background model. In addition, SuperCDMS must maintain a controlled low background environment, and characterize this background to a level that allows the collaboration to take advantage of more sophisticated analysis techniques that employ tools such as maximal likelihood estimations.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

天体物理观测和宇宙学数据提供了强有力的证据，表明近四分之一的宇宙由暗物质组成。弱相互作用大质量粒子(WIMP)和轴子被认为是暗物质理论上最受欢迎的候选者。尽管有强有力的证据证明暗物质的存在，但WIMP和轴子都没有被确凿地探测到。该奖项将为SMU的研究计划提供资金，该计划致力于推动SuperCDMS SNOLAB实验朝着探索低质量(10GeV/c^2)暗物质区域的目标前进，并最终对太阳中微子-核散射显著的WIMP-核子截面(所谓的“中微子层”)具有敏感性。实现这一目标的一部分是已经计划好的实验升级，其中将包括更多由Ge和Si晶体制成的大规模探测器，既可以在超灵敏高压模式下运行，也可以在标准电压模式下运行。该奖项的教育目标是为新加坡管理大学的本科生创造研究机会，并促进与北德克萨斯州社区的关系。方法是加强新加坡管理大学的参与式学习计划，为1-2名本科生提供支持，让他们在暑期和学年从事研究工作。为了培养与北德克萨斯州社区的关系，该小组将自愿投入时间参加各种指导活动。在接下来的三年里，必须实现几个关键里程碑来推进SuperCDMS SNOLAB计划。这些措施包括安装SuperCDMS SNOLAB实验，调试和操作该实验，公布在CUT探测器测试设施中获取的早期科学结果，以及为开发氡背景模型而进行的材料表面分析。此外，SuperCDMS必须保持一个受控的低背景环境，并将该背景的特征描述为允许协作利用更复杂的分析技术的水平，这些分析技术使用了最大似然估计等工具。该奖项反映了NSF的法定使命，并已通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Constraints on low-mass, relic dark matter candidates from a surface-operated SuperCDMS single-charge sensitive detector

• DOI: 10.1103/physrevd.102.091101
• 发表时间: 2020-05
• 期刊: Physical Review D
• 影响因子: 5
• 作者: D. Amaral;T. Aralis;T. Aramaki;I. Arnquist;E. Azadbakht;S. Banik;D. Barker;C. Bathurst;D. Bauer;L. V. S. Bezerra-L. V. S.-Bezerra-1432230453;R. Bhattacharyya;T. Binder;M. Bowles;P. Brink;R. Bunker;B. Cabrera;R. Calkins;R. Cameron;C. Cartaro;D. Cerdeño;Y.-Y. Chang-Y.;R. Chen;N. Chott;J. Cooley;H. Coombes;J. Corbett;P. Cushman;F. De Brienne;M. L. di Vacri;M. Diamond;E. Fascione;E. Figueroa-Feliciano;C. Fink;K. Fouts;M. Fritts;G. Gerbier;R. Germond;M. Ghaith;S. Golwala;H. R. Harris;N. Herbert;B. Hines;M. Hollister;Z. Hong;E. Hoppe;L. Hsu;M. Huber;V. Iyer;D. Jardin;A. Jastram;M. Kelsey;A. Kubik;N. Kurinsky;R. Lawrence;A. Li;B. Loer;E. Lopez Asamar;P. Lukens;D. MacDonell;D. Macfarlane;R. Mahapatra;V. Mandic;N. Mast;A. Mayer;É. Michaud;E. Michielin;N. Mirabolfathi;B. Mohanty;J. Morales Mendoza;S. Nagorny;J. Nelson;H. Neog;V. Novati;J. Orrell;S. Oser;W. Page;P. Pakarha;R. Partridge;R. Podviianiuk;F. Ponce;S. Poudel;M. Pyle;W. Rau;E. Reid;R. Ren;T. Reynolds;A. Roberts;A. Robinson;H. Rogers;T. Saab;B. Sadoulet;J. Sander;A. Sattari;R. Schnee;S. Scorza;B. Serfass;D. Sincavage;C. Stanford;M. Stein;J. Street;D. Toback;R. Underwood;S. Verma;A. Villano;B. von Krosigk;S. Watkins;L. Wills;J. S. Wilson-J. S.-Wilson-2109103973;M. Wilson;J. Winchell;D. Wright;S. Yellin;B. Young;T. Yu;E. Zhang;H. G. Zhang-H. G.-Zhang-2125674700;X. Zhao;L. Zheng

Dark Matter Direct Detection of Classical WIMPs

• DOI: 10.21468/scipostphyslectnotes.55
• 发表时间: 2021-10
• 作者: J. Cooley

First Measurement of the Nuclear-Recoil Ionization Yield in Silicon at 100 eV

首次测量 100 eV 硅中的核反冲电离产额

• DOI: 10.1103/physrevlett.131.091801
• 发表时间: 2023
• 期刊: Physical Review Letters
• 影响因子: 8.6
• 作者: Albakry, M. F.;Alkhatib, I.;Alonso, D.;Amaral, D. W. P.;Aralis, T.;Aramaki, T.;Arnquist, I. J.;Ataee Langroudy, I.;Azadbakht, E.;Banik, S.
• 通讯作者: Banik, S.

Search for low-mass dark matter via bremsstrahlung radiation and the Migdal effect in SuperCDMS

通过轫致辐射和 SuperCDMS 中的 Migdal 效应寻找低质量暗物质

• DOI: 10.1103/physrevd.107.112013
• 发表时间: 2023
• 期刊: Physical Review D
• 影响因子: 5
• 作者: Albakry, M. F.;Alkhatib, I.;Alonso-González, D.;Amaral, D. W. P.;Aralis, T.;Aramaki, T.;Arnquist, I. J.;Ataee Langroudy, I.;Azadbakht, E.;Banik, S.
• 通讯作者: Banik, S.

Effect on dark matter exclusion limits from new silicon photoelectric absorption measurements

• DOI: 10.1103/physrevd.104.063002
• 发表时间: 2020-10
• 期刊: Physical Review D
• 影响因子: 5
• 作者: B. Krosigk;Matthew Wilson;Chris Stanford;B. Cabrera;R. Calkins;D. Jardin;N. Kurinsky;F. Ponce;Chih-Pan Wu