来自10 eV阈值CRESST-III硅探测器的亚GeV暗物质结果
宇宙学与河外天体物理
2023-06-26 v2
摘要
我们给出了暗物质粒子与硅核自旋无关相互作用截面的限制，数据取自CRESST-III实验中运行的靶质量为0.35 g的低温量热计。已实现 eV 的基线核反冲能量分辨率（目前宏观粒子探测器的最低报道值）及相应的 eV 能量阈值，相较先前结果，对质量低于160 MeV/c 的轻暗物质粒子的灵敏度提高了最高达20倍。我们刻画了观测到的低能超出，并排除了噪声触发与晶体表面放射性污染作为主导贡献。
引用
@article{arxiv.2212.12513,
title = {Results on sub-GeV Dark Matter from a 10 eV Threshold CRESST-III Silicon Detector},
author = {CRESST Collaboration and G. Angloher and S. Banik and G. Benato and A. Bento and A. Bertolini and R. Breier and C. Bucci and J. Burkhart and L. Canonica and A. D'Addabbo and S. Di Lorenzo and L. Einfalt and A. Erb and F. v. Feilitzsch and N. Ferreiro Iachellini and S. Fichtinger and D. Fuchs and A. Fuss and A. Garai and V. M. Ghete and S. Gerster and P. Gorla and P. V. Guillaumon and S. Gupta and D. Hauff and M. Ješkovský and J. Jochum and M. Kaznacheeva and A. Kinast and H. Kluck and H. Kraus and A. Langenkämper and M. Mancuso and L. Marini and L. Meyer and V. Mokina and A. Nilima and M. Olmi and T. Ortmann and C. Pagliarone and L. Pattavina and F. Petricca and W. Potzel and P. Povinec and F. Pröbst and F. Pucci and F. Reindl and J. Rothe and K. Schäffner and J. Schieck and D. Schmiedmayer and S. Schönert and C. Schwertner and M. Stahlberg and L. Stodolsky and C. Strandhagen and R. Strauss and I. Usherov and F. Wagner and M. Willers and V. Zema},
journal= {arXiv preprint arXiv:2212.12513},
year = {2023}
}
备注
8 pages, 5 figures; precised the position of the calibration source in Fig. 1; extended the discussion about the observed energy spectrum; added the DM limit curve to ancillary files. Published in Phys. Rev. D