JUNO、IceCube升级版与PINGU联合探测中微子质量排序的灵敏度
高能物理 - 实验
2020-02-26 v1 仪器与探测器
摘要
中微子质量本征态的排序是中微子物理学中基本的开放问题之一。当前一代中微子振荡实验能够对此排序给出中等程度的指示，而下一代即将到来的实验旨在提供确凿证据。本文中，我们研究了两台未来多用途中微子振荡实验JUNO与IceCube升级版的联合性能，它们采用两条截然不同且互补的路径来探测中微子质量排序。由中基线反应堆中微子实验JUNO所采取的方案，包括对十个核反应堆堆芯产生的经振荡的能谱进行细致研究。另一方面，IceCube升级版由部署在IceCube DeepCore中心额外七根密集布设的字符串组成，将观测大量经历受地球物质影响振荡的大气中微子。在两种方案的联合拟合中，它们所偏好的错误质量排序下的质量平方差之间存在张力。对于JUNO与IceCube升级版，这使得在3–7年的时间尺度上以排除错误排序成为可能——即便在对其各自灵敏度不利的情形下亦然。对于PINGU，一个设计为IceCube潜在低能扩展的26弦探测器阵列，在联合分析中倒置排序可在1.5年内被排除（正常排序则需3年）。
引用
@article{arxiv.1911.06745,
title = {Combined sensitivity to the neutrino mass ordering with JUNO, the IceCube Upgrade, and PINGU},
author = {Gen2 Collaboration and M. G. Aartsen and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and M. Ahrens and C. Alispach and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Argüelles and T. C. Arlen and J. Auffenberg and S. Axani and P. Backes and H. Bagherpour and X. Bai and A. Balagopal V. and A. Barbano and I. Bartos and S. W. Barwick and B. Bastian and V. Baum and S. Baur and R. Bay and J. J. Beatty and K. -H. Becker and J. Becker Tjus and S. BenZvi and D. Berley and E. Bernardini and D. Z. Besson and G. Binder and D. Bindig and E. Blaufuss and S. Blot and C. Bohm and M. Bohmer and S. Böser and O. Botner and J. Böttcher and E. Bourbeau and J. Bourbeau and F. Bradascio and J. Braun and S. Bron and J. Brostean-Kaiser and A. Burgman and J. Buscher and R. S. Busse and T. Carver and C. Chen and E. Cheung and D. Chirkin and S. Choi and K. Clark and L. Classen and A. Coleman and G. H. Collin and J. M. Conrad and P. Coppin and P. Correa and D. F. 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Xu and Y. Xu and J. P. Yanez and G. Yodh and S. Yoshida and T. Yuan and M. Zöcklein and JUNO Collaboration Members and : and T. J. C. Bezerra and T. Birkenfeld and D. Blum and M. Bongrand and A. Cabrera and Y. P. Cheng and W. Depnering and O. Dötterl and T. Enqvist and H. Enzmann and C. Genster and M. Grassi and A. S. Göttel and P. Hackspacher and C. Hagner and Y. Han and T. Heinz and P. Kampmann and P. Kuusiniemi and T. Lachenmaier and K. Loo and S. Lorenz and B. Lubsandorzhiev and L. Ludhova and Y. Malyshkin and D. Meyhöfer and L. Miramonti and A. Müller and L. J. N. Oberauer and O. Pilarczyk and H. Rebber and J. Sawatzki and M. Schever and K. Schweizer and M. Settimo and C. Sirignano and M. Smirnov and A. Stahl and H. T. J. Steiger and J. Steinmann and T. Sterr and M. R. Stock and A. Studenikin and A. Tietzsch and W. H. Trzaska and B. Viaud and C. Volpe and W. Wang and B. S. Wonsak and M. Wurm and C. Wysotzki and Y. Xu and D. Xuefeng and F. Yermia},
journal= {arXiv preprint arXiv:1911.06745},
year = {2020}
}