Comprehensive analysis of anomalous ANITA events disfavors a diffuse tau-neutrino flux origin
Comprehensive analysis of anomalous ANITA events disfavors a diffuse tau-neutrino flux origin
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DOI：
10.1103/physrevd.99.063011
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发表时间：
2018-11
影响因子：
5
通讯作者：
A. Romero-Wolf;S. Wissel;H. Schoorlemmer;W. Carvalho;J. Alvarez-Muñiz;E. Zas;P. Allison;O. Banerjee;L. Batten;J. Beatty;K. Bechtol;K. Belov;D. Besson;W. Binns;V. Bugaev;P. Cao;C. -. Chen;C. Chen;P. Chen;J. Clem;A. Connolly;L. Cremonesi;B. Dailey;C. Deaconu;P. Dowkontt;B. Fox;J. Gordon;P. Gorham;C. Hast;B. Hill;S. Hsu;J. J. Huang-J.;K. Hughes;R. Hupe;M. Israel;K. Liewer;T. Liu;A. Ludwig;L. Macchiarulo;S. Matsuno;C. Miki;K. Mulrey;J. Nam;C. Naudet;R. Nichol;A. Novikov;E. Oberla;S. Prohira;B. Rauch;J. Roberts;B. Rotter;J. Russell;D. Saltzberg;D. Seckel;J. Shiao;S. Stafford;J. Stockham;M. Stockham;B. Strutt;M. Sutherland;G. Varner;A. Vieregg;S. H. Wang
中科院分区：
文献类型：
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作者：
A. Romero-Wolf;S. Wissel;H. Schoorlemmer;W. Carvalho;J. Alvarez-Muñiz;E. Zas;P. Allison;O. Banerjee;L. Batten;J. Beatty;K. Bechtol;K. Belov;D. Besson;W. Binns;V. Bugaev;P. Cao;C. -. Chen;C. Chen;P. Chen;J. Clem;A. Connolly;L. Cremonesi;B. Dailey;C. Deaconu;P. Dowkontt;B. Fox;J. Gordon;P. Gorham;C. Hast;B. Hill;S. Hsu;J. J. Huang-J.;K. Hughes;R. Hupe;M. Israel;K. Liewer;T. Liu;A. Ludwig;L. Macchiarulo;S. Matsuno;C. Miki;K. Mulrey;J. Nam;C. Naudet;R. Nichol;A. Novikov;E. Oberla;S. Prohira;B. Rauch;J. Roberts;B. Rotter;J. Russell;D. Saltzberg;D. Seckel;J. Shiao;S. Stafford;J. Stockham;M. Stockham;B. Strutt;M. Sutherland;G. Varner;A. Vieregg;S. H. Wang
最近，ANITA合作报告了两个向上的广泛的空气淋浴事件，与从南极冰盖表面出现的初级粒子一致。这些事件可能起源于ν τ，其中中微子在地球内部相互作用产生τ轻子，从地球中出现，在大气中衰变，并引发广泛的空气簇射。在本文中，我们估计了一个上限的ANITA接受的扩散ν τ通量检测通过τ轻子诱导的空气簇射的标准模型的不确定性范围内。通过比较这个估计与皮埃尔俄歇天文台和冰立方的接受，并假设标准模型的相互作用，我们得出结论，这些事件的ν τ起源将意味着中微子通量至少比当前的界限高出两个数量级。
Recently, the ANITA collaboration reported on two upward-going extensive air shower events consistent with a primary particle that emerges from the surface of the Antarctic ice sheet. These events may be of ν τ origin, in which the neutrino interacts within the Earth to produce a τ lepton that emerges from the Earth, decays in the atmosphere, and initiates an extensive air shower. In this paper we estimate an upper bound on the ANITA acceptance to a diffuse ν τ flux detected via τ -lepton-induced air showers within the bounds of standard model uncertainties. By comparing this estimate with the acceptance of Pierre Auger Observatory and IceCube and assuming standard model interactions, we conclude that a ν τ origin of these events would imply a neutrino flux at least two orders of magnitude above current bounds.