Sterile neutrino oscillations: the global picture

被引：362

作者：

Kopp, Joachim ^{[1
]}

Machado, Pedro A. N. ^{[2
,3
]}

Maltoni, Michele ^{[4
]}

Schwetz, Thomas ^{[1
]}

机构：

[1] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany

[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil

[3] CEA Saclay, Inst Phys Theor, F-91191 Gif Sur Yvette, France

[4] Inst Fis Teor UAM CSIC, E-28049 Madrid, Spain

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2013年 / 05期

关键词：

Beyond Standard Model; Neutrino Physics; Solar and Atmospheric Neutrinos; LONG-BASE-LINE; ANTINEUTRINO SPECTRA; FISSION-PRODUCTS; UPPER LIMIT; SEARCH; MASS; REACTOR; SOLAR; SIMULATION; PU-239;

D O I：

10.1007/JHEP05(2013)050

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Neutrino oscillations involving eV-scale neutrino mass states are investigated in the context of global neutrino oscillation data including short and long-baseline accelerator, reactor, and radioactive source experiments, as well as atmospheric and solar neutrinos. We consider sterile neutrino mass schemes involving one or two mass-squared differences at the eV(2) scale denoted by 3+1, 3+2, and 1+3+1. We discuss the hints for eV-scale neutrinos from nu(e) disappearance (reactor and Gallium anomalies) and appearance (LSND and MiniBooNE) searches, and we present constraints on sterile neutrino mixing from nu(mu) and neutral-current disappearance data. An explanation of all hints in terms of oscillations suffers from severe tension between appearance and disappearance data. The best compatibility is obtained in the 1+3+1 scheme with a p-value of 0.2% and exceedingly worse compatibilities in the 3+1 and 3+2 schemes.

引用

页数：52

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