Neutrino Interactions in IceCube above 1 TeV: Constraints on Atmospheric Charmed-Meson Production and Investigation of the Astrophysical Neutrino Flux with 2 Years of IceCube Data taken 2010--2012

Neutrino Interactions in IceCube above 1 TeV: Constraints on Atmospheric Charmed-Meson Production and Investigation of the Astrophysical Neutrino Flux with 2 Years of IceCube Data taken 2010--2012
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1 TeV 以上 IceCube 中的中微子相互作用:大气 Charmed 介子产生的限制以及使用 2010--2012 年 2 年 IceCube 数据对天体物理中微子通量的研究

DOI:
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发表时间:
2014
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影响因子:
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通讯作者:
J. Santen
J. Santen
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作者:
J. Santen

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高能中微子是理想的宇宙信使,每当宇宙射线与未知加速位点附近的物质或光子相互作用时就会产生高能中微子,并将有关那里条件的信息传递到地球,而不会被磁场偏转或被介入物质吸收。与此同时,宇宙射线空气簇射中产生的中微子提供了地面加速器难以探测的运动学区域的强子物理信息。 这项工作对 2010 年 5 月至 2012 年 5 月期间在 IceCube 探测器的仪表体积内相互作用的中微子的能谱和角分布进行了分析。该分析提供了有关最近发现的天体物理中微子通量的能谱的新信息,以及空气簇射中产生的粲介子的迅速衰变对中微子通量的最大贡献。 在这项工作的过程中开发了新的重建、事件选择和模拟技术。这些内容在第 3.4.3、4.2、5.2.2-5.2.4 和 5.4 节中进行了描述。
High-energy neutrinos are ideal cosmic messengers, produced whenever cosmic rays interact with matter or photons near their as-yet unknown acceleration sites, and carrying information about the conditions there to Earth without being deflected by magnetic fields or absorbed by intervening matter. At the same time, neutrinos produced in cosmic-ray air showers provide information about hadronic physics in kinematic regions that are difficult to probe with terrestrial accelerators. This work presents an analysis of the energy spectrum and angular distribution of neutrinos that interacted inside the instrumented volume of the IceCube detector between May 2010 and May 2012. The analysis yielded new information about the energy spectrum of the recently discovered astrophysical neutrino flux as well as the maximum contribution to the neutrino flux from the prompt decays of charmed mesons produced in air showers. New reconstruction, event selection, and simulation techniques were developed in the course of this work. These are described in Sections 3.4.3, 4.2, 5.2.2-5.2.4, and 5.4.
DOI: 10.1103/physrevlett.113.101101
发表时间: 2014-09-02
影响因子: 8.6
作者:
Aartsen, M. G.;Ackermann, M.;Zoll, M.
通讯作者: Zoll, M.