探究 SuperCDMS-HVeV 探测器中低能事件的来源
高能物理 - 实验
2022-10-12 v2 宇宙学与河外天体物理
仪器与探测器
摘要
近期搜寻亚 GeV/ 暗物质实验在其各自能量阈值附近观测到了事件超出。尽管因具体技术而异，所测得的超出事件率一致被报道在几百 eV 的事件能量及以下，或具有几个电子-空穴对的电荷。本工作中，我们在一块 1 克硅 SuperCDMS-HVeV 探测器上施加晶体两侧三种电压（0 V、60 V 和 100 V）进行操作。0 V 数据显示在数十 eV 区域存在事件超出。尽管存在该事件超出，我们展示了设定具有竞争力的、关于质量 MeV/ 的暗物质与核子弹性散射自旋无关截面的排除极限的能力，这得益于探测器在 0 V 电势下运行以及实现了极低的核反冲 eV 阈值。通过比较晶体两侧 0 V、60 V 和 100 V 电势下获取的数据，我们探究了观测到的低能意外事件的可能来源。数据表明，该超出的主要贡献与探测器支架中所用印刷电路板的假设发光一致。
引用
@article{arxiv.2204.08038,
title = {Investigating the sources of low-energy events in a SuperCDMS-HVeV detector},
author = {SuperCDMS Collaboration and M. F. Albakry and I. Alkhatib and D. W. P. Amaral and T. Aralis and T. Aramaki and I. J. Arnquist and I. Ataee Langroudy and E. Azadbakht and S. Banik and C. Bathurst and D. A. Bauer and R. Bhattacharyya and P. L. Brink and R. Bunker and B. Cabrera and R. Calkins and R. A. Cameron and C. Cartaro and D. G. Cerdeño and Y. -Y. Chang and M. Chaudhuri and R. Chen and N. Chott and J. Cooley and H. Coombes and J. Corbett and P. Cushman and F. De Brienne and S. Dharani and M. L. di Vacri and M. D. Diamond and E. Fascione and E. Figueroa-Feliciano and C. W. Fink and K. Fouts and M. Fritts and G. Gerbier and R. Germond and M. Ghaith and S. R. Golwala and J. Hall and N. Hassan and B. A. Hines and M. I. Hollister and Z. Hong and E. W. Hoppe and L. Hsu and M. E. Huber and V. Iyer and A. Jastram and V. K. S. Kashyap and M. H. Kelsey and A. Kubik and N. A. Kurinsky and R. E. Lawrence and M. Lee and A. Li and J. Liu and Y. Liu and B. Loer and E. Lopez Asamar and P. Lukens and D. B. MacFarlane and R. Mahapatra and V. Mandic and N. Mast and A. J. Mayer and H. Meyer zu Theenhausen and É. Michaud and E. Michielin and N. Mirabolfathi and B. Mohanty and S. Nagorny and J. Nelson and H. Neog and V. Novati and J. L. Orrell and M. D. Osborne and S. M. Oser and W. A. Page and R. Partridge and D. S. Pedreros and R. Podviianiuk and F. Ponce and S. Poudel and A. Pradeep and M. Pyle and W. Rau and E. Reid and R. Ren and T. Reynolds and A. Roberts and A. E. Robinson and T. Saab and B. Sadoulet and I. Saikia and J. Sander and A. Sattari and B. Schmidt and R. W. Schnee and S. Scorza and B. Serfass and S. S. Poudel and D. J. Sincavage and C. Stanford and J. Street and H. Sun and F. K. Thasrawala and D. Toback and R. Underwood and S. Verma and A. N. Villano and B. von Krosigk and S. L. Watkins and O. Wen and Z. Williams and M. J. Wilson and J. Winchell and K. Wykoff and S. Yellin and B. A. Young and T. C. Yu and B. Zatschler and S. Zatschler and A. Zaytsev and E. Zhang and L. Zheng and S. Zuber},
journal= {arXiv preprint arXiv:2204.08038},
year = {2022}
}