CUORE 实验的新结果
仪器与探测器
2021-01-08 v2 核实验
摘要
用于稀有事件低温地下观测站（CUORE）是首个搜寻无中微子双贝塔（）衰变并达到吨级规模的低温实验。该探测器位于意大利格兰萨索国家实验室（Laboratori Nazionali del Gran Sasso），由 988 个 TeO 晶体组成阵列，排列为 19 个塔的紧凑圆柱结构。在 2016 年 8 月探测器建造完成后，CUORE 于 2017 年在约 10 mK 的基准温度下开始了首次物理数据采集运行。在 2018 年多次优化后，CUORE 目前处于稳定运行模式。2019 年，CUORE 发布了其搜寻 的第二批结果，TeO 暴露量为 372.5 kgyr，对 Te 衰变半衰期的 median 排除灵敏度为 yr。我们未发现 衰变证据，并对 Te 衰变半衰期设定了 90\% 可信区间（credibility interval）贝叶斯下限 yr。本工作中，我们介绍了 CUORE 搜寻 的当前状态，并回顾了探测器性能。最后，我们给出了 CUORE 本底模型以及 Te 双中微子双贝塔（）衰变半衰期的测量更新。
引用
@article{arxiv.2011.09295,
title = {New results from the CUORE experiment},
author = {A. Giachero and D. Q. Adams and C. Alduino and K. Alfonso and F. T. Avignone and O. Azzolini and G. Bari and F. Bellini and G. Benato and M. Biassoni and A. Branca and C. Brofferio and C. Bucci and J. Camilleri and A. Caminata and A. Campani and L. Canonica and X. G. Cao and S. Capelli and L. Cappelli and L. Cardani and P. Carniti and N. Casali and E. Celi and D. Chiesa and M. Clemenza and S. Copello and C. Cosmelli and O. Cremonesi and R. J. Creswick and A. D'Addabbo and I. Dafinei and C. J. Davis and S. Dell'Oro and S. Di Domizio and V. Dompè and D. Q. Fang and G. Fantini and M. Faverzani and E. Ferri and F. Ferroni and E. Fiorini and M. A. Franceschi and S. J. Freedman and S. H. Fu and B. K. Fujikawa and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and T. D. Gutierrez and K. Han and K. M. Heeger and R. G. Huang and H. Z. Huang and J. Johnston and G. Keppel and Yu. G. Kolomensky and C. Ligi and L. Ma and Y. G. Ma and L. Marini and R. H. Maruyama and D. Mayer and Y. Mei and N. Moggi and S. Morganti and T. Napolitano and M. Nastasi and J. Nikkel and C. Nones and E. B. Norman and A. Nucciotti and I. Nutini and T. O'Donnell and J. L. Ouellet and S. Pagan and C. E. Pagliarone and L. Pagnanini and M. Pallavicini and L. Pattavina and M. Pavan and G. Pessina and V. Pettinacci and C. Pira and S. Pirro and S. Pozzi and E. Previtali and A. Puiu and C. Rosenfeld and C. Rusconi and M. Sakai and S. Sangiorgio and B. Schmidt and N. D. Scielzo and V. Sharma and V. Singh and M. Sisti and D. Speller and P. T. Surukuch and L. Taffarello and F. Terranova and C. Tomei and K. Vetter and M. Vignati and S. L. Wagaarachchi and B. S. Wang and B. Welliver and J. Wilson and K. Wilson and L. A. Winslow and S. Zimmermann and S. Zucchelli},
journal= {arXiv preprint arXiv:2011.09295},
year = {2021}
}
备注
Proceeding of 40th International Conference on High Energy physics (ICHEP2020), July 28 - August 6, 2020, Prague, Czech Republic (virtual meeting). arXiv admin note: text overlap with arXiv:1905.07667