Double Chooz 中基于闪烁波形频谱分析的新型事件分类方法
仪器与探测器
2018-02-21 v3 高能物理 - 实验
摘要
液体闪烁体是中微子物理实验的常见选择，但在大型探测器中，其通过闪烁脉冲形状甄别进行本底抑制的能力通常有限。本文描述了在 Double Chooz 反应堆反中微子实验背景下开发的一种基于脉冲形状的新型事件分类方法。与以往的实现方式不同，该方法利用闪烁脉冲形状的傅里叶功率谱来获取事件级信息。尽管在探测器设计层面缺乏优化，由频谱信息构建的分类变量仍实现了前所未有的性能。文中提供了若干事件分类示例，涵盖探测器体积区分、仪器光噪声的有效抑制，以及对粒子类型的一定灵敏度，例如停止缪子、正电子素形成、α粒子以及电子和正电子。结合其他技术，该方法有望在未来实现更通用、更高效的本底抑制，尤其是在设计层面考虑探测器优化的情况下。
引用
@article{arxiv.1710.04315,
title = {Novel event classification based on spectral analysis of scintillation waveforms in Double Chooz},
author = {T. Abrahão and H. Almazan and J. C. dos Anjos and S. Appel and I. Bekman and T. J. C. Bezerra and L. Bezrukov and E. Blucher and T. Brugière and C. Buck and J. Busenitz and A. Cabrera and L. Camilleri and M. Cerrada and E. Chauveau and P. Chimenti and O. Corpace and J. I. Crespo-Anadón and J. V. Dawson and Z. Djurcic and A. Etenko and M. Fallot and D. Franco and H. Furuta and I. Gil-Botella and A. Givaudan and H. Gómez and L. F. G. Gonzalez and M. Goodman and T. Hara and J. Haser and D. Hellwig and A. Hourlier and M. Ishitsuka and J. Jochum and C. Jollet and K. Kale and P. Kampmann and M. Kaneda and T. Kawasaki and E. Kemp and H. de Kerret and D. Kryn and M. Kuze and T. Lachenmaier and C. Lane and T. Lasserre and C. Lastoria and D. Lhuillier and H. Lima and M. Lindner and J. M. López-Castaño and J. M. LoSecco and B. Lubsandorzhiev and J. Maeda and C. Mariani and J. Maricic and T. Matsubara and G. Mention and A. Meregaglia and T. Miletic and R. Milincic and A. Minotti and D. Navas-Nicolás and P. Novella and L. Oberauer and M. Obolensky and A. Onillon and A. Oralbaev and C. Palomares and I. Pepe and G. Pronost and B. Reinhold and R. Santorelli and S. Schönert and S. Schoppmann and M. Settimo and R. Sharankova and V. Sibille and V. Sinev and M. Skorokhvatov and P. Soldin and A. Stahl and I. Stancu and L. F. F. Stokes and F. Suekane and S. Sukhotin and T. Sumiyoshi and Y. Sun and A. Tonazzo and C. Veyssiere and B. Viaud and M. Vivier and S. Wagner and C. Wiebusch and G. Yang and F. Yermia},
journal= {arXiv preprint arXiv:1710.04315},
year = {2018}
}
备注
27 pages, 14 figures