Sensitivity of a search for eV-scale sterile neutrinos with 8 years of IceCube DeepCore data

被引：1

作者：

Trettin, A. ^{[1
]}

机构：

[1] Deutsch Elektronensynchrotron DESY Zeuthen, Platanenallee 6, Zeuthen, Germany

来源：

JOURNAL OF INSTRUMENTATION | 2021年 / 16卷 / 09期

关键词：

Analysis and statistical methods; Neutrino detectors; Cherenkov detectors;

D O I：

10.1088/1748-0221/16/09/C09005

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Several anomalies in reactor and accelerator neutrino experiments motivate the search for sterile neutrinos with squared mass splittings at the eV-scale. We present an analysis that probes the elements U mu(4) and U tau(4) of the extended (3 + 1) neutrino mixing matrix using an 8 year data sample from IceCube's DeepCore sub-array containing atmospheric neutrinos between 5 and 300 GeV. We show the expected sensitivities of the analysis to vertical bar U mu(4)vertical bar(2) and vertical bar U tau(2)(4 vertical bar) under the assumption of mass splittings between 1 and 100 eV(2), and to vertical bar U mu(4)vertical bar(2) for mass splittings below 1 eV(2). We specifically discuss how we overcame the challenges of efficiently calculating neutrino oscillation probabilities in the presence of very fast neutrino oscillations involving large Delta m(2).

引用

页数：6

共 50 条

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