南极声学中微子探测的本底研究
天体物理仪器与方法
2011-10-19 v2
摘要
从超高能中微子相互作用中探测声学信号是测量地球上预期存在的微量宇宙成因中微子通量的一种有前景的方法。该过程的能量阈值强烈依赖于目标材料中的绝对噪声水平。部署在冰立方中微子天文台四个钻孔上部的南极声学测试装置（SPATS），已对南极冰层中的噪声进行了两年多的监测，深度达500米。噪声非常稳定且呈高斯分布。由于至今缺乏原位校准，已利用实验室测量来估计10至50 kHz频率范围内的绝对噪声水平低于20 mPa。使用阈值触发，南极声学测试装置的传感器在冰立方探测器体积及其附近记录了类似声学脉冲的事件。来自冰立方钻孔重新冻结和人为源的声学信号已被用于定位声学事件。从已建立的声源到SPATS传感器的声音传播蒙特卡罗模拟已用于检验相应的模型预期。根据八个月的声学数据，推导出能量 GeV 的中微子通量的上限。
引用
@article{arxiv.1103.1216,
title = {Background studies for acoustic neutrino detection at the South Pole},
author = {The IceCube Collaboration and R. Abbasi and Y. Abdou and T. Abu-Zayyad and J. Adams and J. A. Aguilar and M. Ahlers and K. Andeen and J. Auffenberg and X. Bai and M. Baker and S. W. Barwick and R. Bay and J. L. Bazo Alba and K. Beattie and J. J. Beatty and S. Bechet and J. K. Becker and K. -H. Becker and M. L. Benabderrahmane and S. BenZvi and J. Berdermann and P. Berghaus and D. Berley and E. Bernardini and D. Bertrand and D. Z. Besson and D. Bindig and M. Bissok and E. Blaufuss and J. Blumenthal and D. J. Boersma and C. Bohm and D. Bose and S. Böser and O. Botner and J. Braun and A. M. Brown and S. Buitink and M. Carson and D. Chirkin and B. Christy and J. Clem and F. Clevermann and S. Cohen and C. Colnard and D. F. Cowen and M. V. D'Agostino and M. Danninger and J. Daughhetee and J. C. Davis and C. De Clercq and L. Demirörs and T. Denger and O. Depaepe and F. Descamps and P. Desiati and G. de Vries-Uiterweerd and T. DeYoung and J. C. Diaz-Vélez and M. Dierckxsens and J. Dreyer and J. P. Dumm and R. Ehrlich and J. Eisch and R. W. Ellsworth and O. Engdegård and S. Euler and P. A. Evenson and O. Fadiran and A. R. Fazely and A. Fedynitch and T. Feusels and K. Filimonov and C. Finley and T. Fischer-Wasels and M. M. Foerster and B. D. Fox and A. Franckowiak and R. Franke and T. K. Gaisser and J. Gallagher and M. Geisler and L. Gerhardt and L. Gladstone and T. Glüsenkamp and A. Goldschmidt and J. A. Goodman and D. Grant and T. Griesel and A. Groß and S. Grullon and M. Gurtner and C. Ha and A. Hallgren and F. Halzen and K. Han and K. Hanson and D. Heinen and K. Helbing and P. Herquet and S. Hickford and G. C. Hill and K. D. Hoffman and A. Homeier and K. Hoshina and D. Hubert and W. Huelsnitz and J. -P. Hülß and P. O. Hulth and K. Hultqvist and S. Hussain and A. Ishihara and J. Jacobsen and G. S. Japaridze and H. Johansson and J. M. Joseph and K. -H. Kampert and A. Kappes and T. Karg and A. Karle and J. L. Kelley and P. Kenny and J. Kiryluk and F. Kislat and S. R. Klein and J. -H. Köhne and G. Kohnen and H. Kolanoski and L. Köpke and S. Kopper and D. J. Koskinen and M. Kowalski and T. Kowarik and M. Krasberg and T. Krings and G. Kroll and K. Kuehn and T. Kuwabara and M. Labare and S. Lafebre and K. Laihem and H. Landsman and M. J. Larson and R. Lauer and J. Lünemann and J. Madsen and P. Majumdar and A. Marotta and R. Maruyama and K. Mase and H. S. Matis and K. Meagher and M. Merck and P. Mészáros and T. Meures and E. Middell and N. Milke and J. Miller and T. Montaruli and R. Morse and S. M. Movit and R. Nahnhauer and J. W. Nam and U. Naumann and P. Nießen and D. R. Nygren and S. Odrowski and A. Olivas and M. Olivo and A. O'Murchadha and M. Ono and S. Panknin and L. Paul and C. Pérez de los Heros and J. Petrovic and A. Piegsa and D. Pieloth and R. Porrata and J. Posselt and P. B. Price and M. Prikockis and G. T. Przybylski and K. Rawlins and P. Redl and E. Resconi and W. Rhode and M. Ribordy and A. Rizzo and J. P. Rodrigues and P. Roth and F. Rothmaier and C. Rott and T. Ruhe and D. Rutledge and B. Ruzybayev and D. Ryckbosch and H. -G. Sander and M. Santander and S. Sarkar and K. Schatto and T. Schmidt and A. Schönwald and A. Schukraft and A. Schultes and O. Schulz and M. Schunck and D. Seckel and B. Semburg and S. H. Seo and Y. Sestayo and S. Seunarine and A. Silvestri and A. Slipak and G. M. Spiczak and C. Spiering and M. Stamatikos and T. Stanev and G. Stephens and T. Stezelberger and R. G. Stokstad and A. Stössl and S. Stoyanov and E. A. Strahler and T. Straszheim and M. Stür and G. W. Sullivan and Q. Swillens and H. Taavola and I. Taboada and A. Tamburro and A. Tepe and S. Ter-Antonyan and S. Tilav and P. A. Toale and S. Toscano and D. Tosi and D. Turčan and N. van Eijndhoven and J. Vandenbroucke and A. Van Overloop and J. van Santen and M. Vehring and M. Voge and C. Walck and T. Waldenmaier and M. Wallraff and M. Walter and Ch. Weaver and C. Wendt and S. Westerhoff and N. Whitehorn and K. Wiebe and C. H. Wiebusch and D. R. Williams and R. Wischnewski and H. Wissing and M. Wolf and K. Woschnagg and C. Xu and X. W. Xu and J. P. Yanez and G. Yodh and S. Yoshida and P. Zarzhitsky},
journal= {arXiv preprint arXiv:1103.1216},
year = {2011}
}
备注
17 pages, 14 figures