XENON1T 暗物质实验的物理探测范围
仪器与探测器
2016-04-25 v2 宇宙学与河外天体物理
摘要
XENON1T 实验目前正处于意大利格兰萨索国家实验室（Laboratori Nazionali del Gran Sasso）的调试阶段。在本文中，我们基于电子反冲和核反冲背景的蒙特卡洛预测，研究了该实验对自旋无关 WIMP-核子相互作用截面的预期灵敏度。在 吨 fiducial 体积和 (, ) keV 电子反冲等效能量区间内，在应用任何区分电子与核反冲的选择之前，总电子反冲背景为 (，主要源于氙靶内 子体的衰变。在相应的核反冲等效能量区间 (, ) keV 内，核反冲背景由以下组成：来自放射性中子的是 (，来自中微子相干散射的是 (，以及来自缪子诱发中子的小于 (。XENON1T 的灵敏度采用 Profile Likelihood Ratio 方法计算，先将电子和核反冲的沉积能量转换为探测器中观测到的闪烁和电离信号。我们考虑了光子与电子发射模型以及背景估计的系统不确定性，将其作为 nuisance 参数。主要贡献来自相对闪烁效率 ，它同时影响来自 WIMP 的信号和核反冲背景。在 t fiducial 体积中进行 年测量后，灵敏度在 m= GeV/ 处达到 cm 的最小截面。
引用
@article{arxiv.1512.07501,
title = {Physics reach of the XENON1T dark matter experiment},
author = {The XENON collaboration and E. Aprile and J. Aalbers and F. Agostini and M. Alfonsi and F. D. Amaro and M. Anthony and L. Arazi and F. Arneodo and C. Balan and P. Barrow and L. Baudis and B. Bauermeister and T. Berger and P. Breur and A. Breskin and A. Brown and E. Brown and S. Bruenner and G. Bruno and R. Budnik and L. Bütikofer and J. M. R. Cardoso and M. Cervantes and D. Cichon and D. Coderre and A. P. Colijn and J. Conrad and H. Contreras and J. P. Cussonneau and M. P. Decowski and P. de Perio and P. Di Gangi and A. Di Giovanni and E. Duchovni and S. Fattori and A. D. Ferella and A. Fieguth and D. Franco and W. Fulgione and M. Galloway and M. Garbini and C. Geis and L. W. Goetzke and Z. Greene and C. Grignon and E. Gross and W. Hampel and C. Hasterok and R. Itay and F. Kaether and B. Kaminsky and G. Kessler and A. Kish and H. Landsman and R. F. Lang and D. Lellouch and L. Levinson and M. Le Calloch and C. Levy and S. Lindemann and M. Lindner and J. A. M. Lopes and A. Lyashenko and S. Macmullin and A. Manfredini and T. Marrodán Undagoitia and J. Masbou and F. V. Massoli and D. Mayani and A. J. Melgarejo Fernandez and Y. Meng and M. Messina and K. Micheneau and B. Miguez and A. Molinario and M. Murra and J. Naganoma and U. Oberlack and S. E. A. Orrigo and P. Pakarha and B. Pelssers and R. Persiani and F. Piastra and J. Pienaar and G. Plante and N. Priel and L. Rauch and S. Reichard and C. Reuter and A. Rizzo and S. Rosendahl and N. Rupp and J. M. F. dos Santos and G. Sartorelli and M. Scheibelhut and S. Schindler and J. Schreiner and M. Schumann and L. Scotto Lavina and M. Selvi and P. Shagin and H. Simgen and A. Stein and D. Thers and A. Tiseni and G. Trinchero and C. Tunnell and M. von Sivers and R. Wall and H. Wang and M. Weber and Y. Wei and C. Weinheimer and J. Wulf and Y. Zhang},
journal= {arXiv preprint arXiv:1512.07501},
year = {2016}
}
备注
36 pages, 18 figures, published by JCAP