利用 dE/dx 截断均值测量缪子能量的改进方法
数据分析、统计与概率
2016-02-23 v2 高能天体物理现象
天体物理仪器与方法
摘要
缪子能量的测量对于大型切伦科夫探测器中的许多分析至关重要，特别是那些涉及将地外中微子与大气中微子背景分离的分析。传统上，缪子能量是通过测量沿缪子路径的比能损 (dE/dx) 并将 dE/dx 与缪子能量关联起来确定的。由于高能缪子 ( TeV) 随机损失能量，dE/dx 值的分布范围很大，导致在 IceCube 探测器中观测 1 km 路径长度的缪子时，其典型能量分辨率为 的 0.29。在本文中，我们提出了一种使用截断均值和其他技术来确定缪子能量的改进方法。缪子径迹被划分为具有单独 dE/dx 值的独立段。消除具有最高 dE/dx 的段会产生一个与缪子能量更紧密相关的总体 dE/dx。该方法使能量分辨率达到 的 0.22，提高了 26%。该技术适用于任何大型水或冰探测器，并可能适用于大型闪烁体或液氩探测器。
引用
@article{arxiv.1208.3430,
title = {An improved method for measuring muon energy using the truncated mean of dE/dx},
author = {IceCube collaboration and R. Abbasi and Y. Abdou and M. Ackermann and J. Adams and J. A. Aguilar and M. Ahlers and D. Altmann and K. Andeen and J. Auffenberg and X. Bai and M. Baker and S. W. Barwick and V. Baum and R. Bay and K. Beattie and J. J. Beatty and S. Bechet and J. Becker Tjus and K. -H. Becker and M. Bell 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 L. Brayeur and A. M. Brown and R. Bruijn and J. Brunner and S. Buitink and M. Carson and J. Casey and M. Casier and D. Chirkin and B. Christy and F. Clevermann and S. Cohen and D. F. Cowen and A. H. Cruz Silva and M. Danninger and J. Daughhetee and J. C. Davis and C. De Clercq and F. Descamps and P. Desiati and G. de Vries-Uiterweerd and T. DeYoung and J. C. Díaz-Vélez and J. Dreyer and J. P. Dumm and M. Dunkman and R. Eagan and J. Eisch and C. Elliott 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 J. Feintzeig and T. Feusels and K. Filimonov and C. Finley and T. Fischer-Wasels and S. Flis and A. Franckowiak and R. Franke and K. Frantzen and T. Fuchs and T. K. Gaisser and J. Gallagher and L. Gerhardt and L. Gladstone and T. Glüsenkamp and A. Goldschmidt and J. A. Goodman and D. Góra and D. Grant and A. Groß and S. Grullon and M. Gurtner and C. Ha and A. Haj Ismail and A. Hallgren and F. Halzen and K. Hanson and D. Heereman and P. Heimann and D. Heinen and K. Helbing and R. Hellauer and S. Hickford and G. C. Hill and K. D. Hoffman and R. Hoffmann and A. Homeier and K. Hoshina and W. Huelsnitz and P. O. Hulth and K. Hultqvist and S. Hussain and A. Ishihara and E. Jacobi and J. Jacobsen and G. S. Japaridze and O. Jlelati and A. Kappes and T. Karg and A. Karle and J. Kiryluk and F. Kislat and J. Kläs and S. R. Klein and S. Klepser and J. -H. Köhne and G. Kohnen and H. Kolanoski and L. Köpke and C. Kopper and S. Kopper and D. J. Koskinen and M. Kowalski and M. Krasberg and G. Kroll and J. Kunnen and N. Kurahashi and T. Kuwabara and M. Labare and K. Laihem and H. Landsman and M. J. Larson and R. Lauer and M. Lesiak-Bzdak and J. Lünemann and J. Madsen and R. Maruyama and K. Mase and H. S. Matis and A. McDermott and F. McNally and K. Meagher and M. Merck and P. Mészáros and T. Meures and S. Miarecki and E. Middell and N. Milke and J. Miller and L. Mohrmann and T. Montaruli and R. Morse and S. M. Movit and R. Nahnhauer and U. Naumann and P. Nießen and S. C. Nowicki and D. R. Nygren and A. Obertacke and S. Odrowski and A. Olivas and M. Olivo and A. O'Murchadha and S. Panknin and L. Paul and J. A. Pepper and C. Pérez de los Heros and D. Pieloth and N. Pirk and J. Posselt and P. B. Price and G. T. Przybylski and L. Rädel and K. Rawlins and P. Redl and E. Resconi and W. Rhode and M. Ribordy and M. Richman and B. Riedel and J. P. Rodrigues and J. Roth and F. Rothmaier and C. Rott and C. Roucelle and T. Ruhe and B. Ruzybayev and D. Ryckbosch and S. M. Saba and T. Salameh and H. -G. Sander and M. Santander and S. Sarkar and K. Schatto and M. Scheel and F. Scheriau and T. Schmidt and M. Schmitz and S. Schoenen and S. Schöneberg and L. Schönherr and A. Schönwald and A. Schukraft and L. Schulte and O. Schulz and D. Seckel and S. H. Seo and Y. Sestayo and S. Seunarine and L. Shulman and M. W. E. Smith and M. Soiron and D. Soldin and G. M. Spiczak and C. Spiering and M. Stamatikos and T. Stanev and A. Stasik and T. Stezelberger and R. G. Stokstad and A. Stößl and S. Stoyanov and E. A. Strahler and R. Ström and K-H. Sulanke and G. W. Sullivan and H. Taavola and I. Taboada and A. Tamburro and S. Ter-Antonyan and S. Tilav and P. A. Toale and S. Toscano and M. Usner and D. van der Drift and N. van Eijndhoven 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 R. Wasserman and Ch. Weaver and C. Wendt and S. Westerhoff and N. Whitehorn and K. Wiebe and C. H. Wiebusch and D. R. Williams and H. Wissing and M. Wolf and T. R. Wood and K. Woschnagg and C. Xu and D. L. Xu and X. W. Xu and J. P. Yanez and G. Yodh and S. Yoshida and P. Zarzhitsky and J. Ziemann and A. Zilles and M. Zoll},
journal= {arXiv preprint arXiv:1208.3430},
year = {2016}
}
备注
12 pages, 16 figures