利用改进的否决技术从南天寻找 100 TeV 以下的中微子：IceCube 数据分析
高能天体物理现象
2019-11-19 v2 高能物理 - 实验
摘要
许多银河系伽马射线源，如超新星遗迹，预计会产生典型能量截断远低于 100 TeV 的中微子。对于位于南极的 IceCube 中微子天文台而言，包含银河系内圈和银心的南天在这些能量下是一个极具挑战性的区域，因为存在大量大气缪子背景。在本文中，我们介绍了针对来自南天、能量低于 100 TeV 的类径迹缪中微子事件的数据筛选策略的最新进展。这些策略利用外部探测器区域作为否决，并结合信号图样的特征，将大气缪子背景降低到一个水平，使得 IceCube 首次能够在 100 GeV 至数 TeV 的能量范围内，通过缪中微子带电流通道寻找南天的点状中微子源。在完整的 IceCube 探测器记录的四年数据中，未观察到超出背景预期的中微子显著聚集。我们针对南半球的一系列天体物理目标，报告了在多种谱假设下的中微子通量上限。
引用
@article{arxiv.1902.05792,
title = {Neutrinos below 100 TeV from the southern sky employing refined veto techniques to IceCube data},
author = {IceCube 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 D. Altmann and K. Andeen and T. Anderson and I. Ansseau and G. Anton and C. Argüelles and J. Auffenberg and S. Axani and P. Backes and H. Bagherpour and X. Bai and A. Barbano and S. W. Barwick and V. Baum 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. Börner and S. Böser and O. Botner and E. Bourbeau and J. Bourbeau and F. Bradascio and J. Braun and H. -P. Bretz and S. Bron and J. Brostean-Kaiser and A. Burgman and R. S. Busse and T. Carver and C. Chen and E. Cheung and D. Chirkin and K. Clark and L. Classen and G. H. Collin and J. M. Conrad and P. Coppin and P. Correa and D. F. Cowen and R. Cross and P. Dave and J. P. A. M. de André and C. De Clercq and J. J. DeLaunay and H. Dembinski and K. Deoskar and S. De Ridder and P. Desiati and K. D. de Vries and G. de Wasseige and M. de With and T. DeYoung and J. C. Díaz-Vélez and H. Dujmovic and M. Dunkman and E. Dvorak and B. Eberhardt and T. Ehrhardt and P. Eller and P. A. Evenson and S. Fahey and A. R. Fazely and J. Felde and K. Filimonov and C. Finley and A. Franckowiak and E. Friedman and A. Fritz and T. K. Gaisser and J. Gallagher and E. Ganster and S. Garrappa and L. Gerhardt and K. Ghorbani and T. Glauch and T. Glüsenkamp and A. Goldschmidt and J. G. Gonzalez and D. Grant and Z. Griffith and M. Günder and M. Gündüz and C. Haack and A. Hallgren and L. Halve and F. Halzen and K. Hanson and D. Hebecker and D. Heereman and K. Helbing and R. Hellauer and F. Henningsen and S. Hickford and J. Hignight and G. C. Hill and K. D. Hoffman and R. Hoffmann and T. Hoinka and B. Hokanson-Fasig and K. Hoshina and F. Huang and M. Huber and K. Hultqvist and M. Hünnefeld and R. Hussain and S. In and N. Iovine and A. Ishihara and E. Jacobi and G. S. Japaridze and M. Jeong and K. Jero and B. J. P. Jones and W. Kang and A. Kappes and D. Kappesser and T. Karg and M. Karl and A. Karle and U. Katz and M. Kauer and A. Keivani and J. L. Kelley and A. Kheirandish and J. Kim and T. Kintscher and J. Kiryluk and T. Kittler and S. R. Klein and R. Koirala and H. Kolanoski and L. Köpke and C. Kopper and S. Kopper and D. J. Koskinen and M. Kowalski and K. Krings and G. Krückl and N. Kulacz and S. Kunwar and N. Kurahashi and A. Kyriacou and M. Labare and J. L. Lanfranchi and M. J. Larson and F. Lauber and J. P. Lazar and K. Leonard and M. Leuermann and Q. R. Liu and E. Lohfink and C. J. Lozano Mariscal and L. Lu and F. Lucarelli and J. Lünemann and W. Luszczak and J. Madsen and G. Maggi and K. B. M. Mahn and Y. Makino and K. Mallot and S. Mancina and I. C. Mariş and R. Maruyama and K. Mase and R. Maunu and K. Meagher and M. Medici and A. Medina and M. Meier and S. Meighen-Berger and T. Menne and G. Merino and T. Meures and S. Miarecki and J. Micallef and G. Momenté and T. Montaruli and R. W. Moore and M. Moulai and R. Nagai and R. Nahnhauer and P. Nakarmi and U. Naumann and G. Neer and H. Niederhausen and S. C. Nowicki and D. R. Nygren and A. Obertacke Pollmann and A. Olivas and A. O'Murchadha and E. O'Sullivan and T. Palczewski and H. Pandya and D. V. Pankova and N. Park and P. Peiffer and C. Pérez de los Heros and D. Pieloth and E. Pinat and A. Pizzuto and M. Plum and P. B. Price and G. T. Przybylski and C. Raab and A. Raissi and M. Rameez and L. Rauch and K. Rawlins and I. C. Rea and R. Reimann and B. Relethford and G. Renzi and E. Resconi and W. Rhode and M. Richman and S. Robertson and M. Rongen and C. Rott and T. Ruhe and D. Ryckbosch and D. Rysewyk and I. Safa and S. E. Sanchez Herrera and A. Sandrock and J. Sandroos and M. Santander and S. Sarkar and S. Sarkar and K. Satalecka and M. Schaufel and P. Schlunder and T. Schmidt and A. Schneider and J. Schneider and L. Schumacher and S. Sclafani and D. Seckel and S. Seunarine and M. Silva and R. Snihur and J. Soedingrekso and D. Soldin and M. Song and G. M. Spiczak and C. Spiering and J. Stachurska and M. Stamatikos and T. Stanev and A. Stasik and R. Stein and J. Stettner and A. Steuer and T. Stezelberger and R. G. Stokstad and A. Stößl and N. L. Strotjohann and R. and R. Ström and T. Stuttard and G. W. Sullivan and M. Sutherland and I. Taboada and F. Tenholt and S. Ter-Antonyan and A. Terliuk and S. Tilav and L. Tomankova and C. Tönnis and S. Toscano and D. Tosi and M. Tselengidou and C. F. Tung and A. Turcati and R. Turcotte and C. F. Turley and B. Ty and E. Unger and M. A. Unland Elorrieta and M. Usner and J. Vandenbroucke and W. Van Driessche and D. van Eijk and N. van Eijndhoven and S. Vanheule and J. van Santen and M. Vraeghe and C. Walck and A. Wallace and M. Wallraff and N. Wandkowsky and T. B. Watson and C. Weaver and M. J. Weiss and J. Weldert and C. Wendt and J. Werthebach and S. Westerhoff and B. J. Whelan and N. Whitehorn and K. Wiebe and C. H. Wiebusch and L. Wille and D. R. Williams and L. Wills and M. Wolf and J. Wood and T. R. Wood and K. Woschnagg and G. Wrede and D. L. Xu and X. W. Xu and Y. Xu and J. P. Yanez and G. Yodh and S. Yoshida and T. Yuan},
journal= {arXiv preprint arXiv:1902.05792},
year = {2019}
}
备注
19 pages, 17 figures, 2 tables