scholarly journals Determining neutrino mass hierarchy from electron disappearance at a low energy neutrino factory

2014 ◽  
Vol 89 (7) ◽  
Author(s):  
Rupak Dutta ◽  
Nita Sinha ◽  
Sushant K. Raut
Keyword(s):  
Neutrino Mass ◽  
Low Energy ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Neutrino Factory ◽  
Energy Neutrino

scholarly journals LONG BASELINE NEUTRINO EXPERIMENTS WITH TWO-DETECTOR SETUP

2008 ◽  
Vol 23 (21) ◽  
pp. 3388-3394
Author(s):  
HISAKAZU MINAKATA
Keyword(s):  
Cp Violation ◽  
Neutrino Oscillation ◽  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Neutrino Factory ◽  
Long Baseline ◽  
Neutrino Experiments

I discuss why and how powerful is the two-detector setting in neutrino oscillation experiments. I cover three concrete examples: (1) reactor θ13 experiments, (2) T2KK, Tokai-to-Kamioka-Korea two-detector complex for measuring CP violation, determining the neutrino mass hierarchy, and resolving the eight-fold parameter degeneracy, (3) two-detector setting in a neutrino factory at baselines 3000 km and 7000 km for detecting effects of non-standard interactions (NSI) of neutrinos.

scholarly journals KM3NeT sensitivity to low energy astrophysical neutrinos

2021 ◽  
Vol 16 (12) ◽  
pp. C12003
Author(s):  
G. de Wasseige
Keyword(s):  
Data Science ◽  
Environmental Noise ◽  
High Energy ◽  
Low Energy ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Neutrino Interactions ◽  
Energy Neutrino ◽  
Low Energies ◽  
Astrophysical Neutrinos

Abstract KM3NeT, a new generation of neutrino telescope, is currently being deployed in the Mediterranean Sea. While its two sites, ORCA and ARCA, were respectively designed for the determination of neutrino mass hierarchy and high-energy neutrino astronomy, this contribution presents a study of the detection potential of KM3NeT in the MeV-GeV energy range. At these low energies, the data rate is dominated by low-energy atmospheric muons and environmental noise due to bioluminescence and K-40 decay. The goal of this study is to characterize the environmental noise in order to optimize the selection of low-energy neutrino interactions and increase the sensitivity of KM3NeT to transient astrophysical phenomena, such as close-by core-collapse supernovae, solar flares, and extragalactic transients. In this contribution, we will study how using data science tools might improve the sensitivity of KM3NeT in these low-energy neutrino searches. We will first introduce the data sets and the different variables used to characterize KM3NeT’s response to the environmental noise. We will then compare the efficiency of various tools in identifying different components in the environmental noise and in disentangling low-energy neutrino interactions from the background events. We will conclude with the implication of low-energy neutrinos for future astrophysical transient searches.

Majorana phases and neutrino–antineutrino oscillations

2014 ◽  
Vol 29 (21) ◽  
pp. 1444003 ◽  
Author(s):  
Zhi-Zhong Xing
Keyword(s):  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Special Cases ◽  
The Future ◽  
Massive Neutrinos ◽  
Neutrino Experiments ◽  
Majorana Phases

If massive neutrinos are the Majorana particles, how to pin down the Majorana CP-violating phases will eventually become an unavoidable question relevant to the future neutrino experiments. I argue that a study of neutrino–antineutrino oscillations will greatly help in this regard, although the issue remains purely academic at present. In this talk I first derive the probabilities and CP-violating asymmetries of neutrino–antineutrino oscillations in the three-flavor framework, and then illustrate their properties in two special cases: the normal neutrino mass hierarchy with m1 = 0 and the inverted neutrino mass hierarchy with m3 = 0. I demonstrate the significant contributions of the Majorana phases to the CP-violating asymmetries, even in the absence of the Dirac phase.

A Basic Study on the Neutrino Mass Hierarchy With Reactor Antineutrinos

2014 ◽  
Vol 64 (8) ◽  
pp. 806-810
Author(s):  
Myoung Youl PAC* ◽  
June Ho CHOI
Keyword(s):  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Basic Study ◽  
Neutrino Mass Hierarchy

scholarly journals Supernova 1987A did not test the neutrino mass hierarchy

2002 ◽  
Vol 532 (1-2) ◽  
pp. 19-28 ◽  
Author(s):  
V. Barger ◽  
D. Marfatia ◽  
B.P. Wood
Keyword(s):  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Neutrino Mass Hierarchy ◽  
Supernova 1987A
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