CUORE Collaboration, C. Alduino, K. Alfonso, D. R. Artusa, F. T. Avignone, O. Azzolini, G. Bari, J. W. Beeman, F. Bellini, G. Benato, A. Bersani, M. Biassoni, A… 展开作者
CUORE Collaboration, C. Alduino, K. Alfonso, D. R. Artusa, F. T. Avignone, O. Azzolini, G. Bari, J. W. Beeman, F. Bellini, G. Benato, A. Bersani, M. Biassoni, A. Branca, C. Brofferio, C. Bucci, A. Camacho, A. Caminata, L. Canonica, X. G. Cao, S. Capelli, L. Cappelli, L. Cardani, P. Carniti, N. Casali, L. Cassina, D. Chiesa, N. Chott, M. Clemenza, S. Copello, C. Cosmelli, O. Cremonesi, R. J. Creswick, J. S. Cushman, A. D'Addabbo, D. D'Aguanno, I. Dafinei, C. J. Davis, S. Dell'Oro, M. M. Deninno, S. Di Domizio, M. L. Di Vacri, A. Drobizhev, D. Q. Fang, M. Faverzani, E. Ferri, F. Ferroni, E. Fiorini, M. A. Franceschi, S. J. Freedman, B. K. Fujikawa, A. Giachero, L. Gironi, A. Giuliani, L. Gladstone, P. Gorla, C. Gotti, T. D. Gutierrez, E. E. Haller, K. Han, E. Hansen, K. M. Heeger, R. Hennings-Yeomans, H. Z. Huang, R. Kadel, G. Keppel, Yu. G. Kolomensky, A. Leder, C. Ligi, K. E. Lim, Y. G. Ma, M. Maino, L. Marini, M. Martinez, R. H. Maruyama, Y. Mei, N. Moggi, S. Morganti, P. J. Mosteiro, T. Napolitano, M. Nastasi, C. Nones, E. B. Norman, V. Novati, A. Nucciotti, T. O'Donnell, J. L. Ouellet, C. E. Pagliarone, M. Pallavicini, V. Palmieri, L. Pattavina, M. Pavan, G. Pessina, G. Piperno, C. Pira, S. Pirro, S. Pozzi, E. Previtali, C. Rosenfeld, C. Rusconi, M. Sakai, S. Sangiorgio, D. Santone, B. Schmidt, J. Schmidt, N. D. Scielzo, V. Singh, M. Sisti, A. R. Smith, L. Taffarello, F. Terranova, C. Tomei, M. Vignati, S. L. Wagaarachchi, B. S. Wang, H. W. Wang, B. Welliver, J. Wilson, L. A. Winslow, T. Wise, A. Woodcraft, L. Zanotti, G. Q. Zhang, S. Zimmermann, S. Zucchelli
CUORE is a tonne-scale cryogenic detector operating at the Laboratori Nazionali del Gran Sasso (LNGS) that uses tellurium dioxide bolometers to search for neutrinoless double-beta decay of $^{130}$Te. CUORE is also suitable to search for low energy rare events such as solar axions or WIMP scattering, thanks to its ultra-low background and large target mass. However, to conduct such sensitive searches requires improving the energy threshold to 10 keV. In this paper, we describe the analysis techniques developed for the low energy analysis of CUORE-like detectors, using the data acquired from November 2013 to March 2015 by CUORE-0, a single-tower prototype designed to validate the assembly procedure and new cleaning techniques of CUORE. We explain the energy threshold optimization, continuous monitoring of the trigger efficiency, data and event selection, and energy calibration at low energies in detail. We also present the low energy background spectrum of CUORE-0 below 60keV. Finally, we report the sensitivity of CUORE to WIMP annual modulation using the CUORE-0 energy threshold and background, as well as an estimate of the uncertainty on the nuclear quenching factor from nuclear recoils in CUORE-0.
Cryogenic light detectors with enhanced performance for rare events physics
我们已经开发并测试了一种将测辐射热光探测器耦合到晶体测辐射热计的新方法，该方法基于将光探测器简单地放置在晶体表面上，仅通过重力保持在适当位置。这种简单的安装导致三个重要的改进：（1）它减少了组装检测器所需的非活性材料的量，（2）它通过最小化由安装结构引起的光损失而大大增加了光收集效率，以及（3）由于与热浴的极弱的热链接，它增强了光检测器中引起的热信号。我们测试了这种新技术与16厘米$^2$锗光探测器与热敏电阻读数坐在一个大的TeO $_2$测辐射热计的表面。与以前测试的替代安装相比，光收集效率提高了50%以上。我们在光探测器上获得了20 eV RMS的基线能量分辨率，连同增加的光收集，使我们能够获得用大量TeO $_2$晶体获得的最佳$α$与$β/γ$区分。同时，我们实现了上升和衰减时间分别为0.8和1.6毫秒。这种卓越的性能满足CUPID（CUORE升级粒子识别）实验的所有要求，这是一个1吨重的CUORE后续测辐射热计。
Exploring the keV-scale physics potential of CUORE
University of South Carolina（南卡罗来纳大学）；Virginia Polytechnic Institute and State University（弗吉尼亚理工大学）；Lawrence Berkeley National Laboratory（劳伦斯伯克利国家实验室）；INFN – Laboratori Nazionali di Legnaro（意大利国家核物理研究所-莱尼亚罗国家实验室）；INFN – Sezione di Bologna（意大利国家核物理研究所-博洛尼部分部）；Sapienza Università di Roma（罗马第一大学）；INFN – Sezione di Roma（意大利国家核物理研究所-罗马分部）；Gran Sasso Science Institute（格兰萨索科学研究所）；INFN – Laboratori Nazionali del Gran Sasso（意大利国家核物理研究所-格兰萨索国家实验室）；Università di Milano-Bicocca（米兰比可卡大学）；INFN – Sezione di Milano（意大利国家核物理研究所-米兰分部）；INFN – Sezione di Milano Bicocca（意大利国家核物理研究所-米兰比可卡分部）
Optimization of various isolation techniques to develop low noise, radiation hard double-sided silicon strip detectors for the CBM Silicon Tracking System
本文报道了双面硅微条探测器（DSSD）的设计优化，以减少等效噪声电荷（ENC），并最大限度地提高击穿电压和电荷收集效率。各种隔离技术进行了探讨，并进行了详细的比较研究，以优化检测器的性能。为了评价硅探测器的性能，已包括辐射损伤模型。在五年的预期CBM运行期间，预计中子注量为每年2 × 10 ^{13} n_{eq} cm $^{-2}$，中间阶段为热维护、冷维护和停堆。已经进行了瞬态模拟，以估计辐照探测器的电荷收集性能和模拟已与实验数据进行了验证。
