scholarly journals Resolving the mass hierarchy with atmospheric neutrinos using a liquid argon detector

2008 ◽  
Vol 78 (7) ◽  
Author(s):  
Raj Gandhi ◽  
Pomita Ghoshal ◽  
Srubabati Goswami ◽  
S. Uma Sankar
Keyword(s):  
Liquid Argon ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos

scholarly journals Neutrino mass hierarchy determination via atmospheric neutrinos with future detectors

2008 ◽  
Vol 136 (4) ◽  
pp. 042015
Author(s):  
Raj Gandhi ◽  
Pomita Ghoshal ◽  
Srubabati Goswami ◽  
Poonam Mehta ◽  
S Uma Sankar ◽  
...  
Keyword(s):  
Neutrino Mass ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Neutrino Mass Hierarchy

scholarly journals Measurement of Neutrino Oscillations with Neutrino Telescopes

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Jürgen Brunner
Keyword(s):  
Neutrino Oscillations ◽  
Atmospheric Neutrino ◽  
Neutrino Beam ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Neutrino Mass Hierarchy ◽  
Neutrino Telescopes ◽  
Long Baseline ◽  
Scientific Results

IceCube and ANTARES are the world-largest neutrino telescopes. They are successfully taking data, producing a wealth of scientific results. Whereas their main goal is the detection of cosmic neutrinos with energies in the TeV-PeV range, both have demonstrated their capability to measure neutrino oscillations by studying atmospheric neutrinos with energies of 10–50 GeV. After recalling the methods of these measurements and the first published results of these searches, the potential of existing, and planned low-energy extensions of IceCube and KM3Net are discussed. These new detectors will be able to improve the knowledge of the atmospheric neutrino oscillation parameters, and in particular they might help to understand the neutrino mass hierarchy. Such studies, which use atmospheric neutrinos, could be complemented by measurements in a long-baseline neutrino beam, which is discussed as a long-term future option.

scholarly journals MASS HIERARCHY DETERMINATION FOR θ13=0 AND ATMOSPHERIC NEUTRINOS

2010 ◽  
Vol 25 (26) ◽  
pp. 2255-2266 ◽  
Author(s):  
RAJ GANDHI ◽  
POMITA GHOSHAL ◽  
SRUBABATI GOSWAMI ◽  
S. UMA SANKAR
Keyword(s):  
Neutrino Mass ◽  
Large Range ◽  
Experimental Arrangement ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Neutrino Mass Hierarchy ◽  
Matter Effects ◽  
Beam Experiment ◽  
Realistic Possibility ◽  
The Difference

We examine the possibility of determining the neutrino mass hierarchy in the limit θ13=0 using atmospheric neutrinos as the source. In this limit, in which θ13 driven matter effects are absent, independent measurements of Δ31 and Δ32 can, in principle, lead to hierarchy determination. Since the difference between these two is Δ21, one needs an experimental arrangement where Δ21 L/E ≳1 can be achieved. This condition can be satisfied by atmospheric neutrinos since they have a large range of energies and baselines. In spite of this, we find that hierarchy determination in the θ13=0 limit with atmospheric neutrinos is not a realistic possibility, even in conjunction with an apparently synergistic beam experiment like T2K or NOνA. We discuss the reasons for this, and also in the process clarify the conditions that must be satisfied in general for hierarchy determination if θ13=0.

scholarly journals Mass hierarchy discrimination with atmospheric neutrinos in large volume ice/water Cherenkov detectors

2013 ◽  
Vol 2013 (4) ◽  
Author(s):  
D. Franco ◽  
C. Jollet ◽  
A. Kouchner ◽  
V. Kulikovskiy ◽  
A. Meregaglia ◽  
...  
Keyword(s):  
Large Volume ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Cherenkov Detectors ◽  
Water Cherenkov Detectors ◽  
Ice Water

scholarly journals Nucleon decay searches with large liquid Argon TPC detectors at shallow depths: atmospheric neutrinos and cosmogenic backgrounds

2007 ◽  
Vol 2007 (04) ◽  
pp. 041-041 ◽  
Author(s):  
Antonio Bueno ◽  
Antonio J Melgarejo ◽  
Sergio Navas ◽  
Zuxiang Dai ◽  
Yuanyuan Ge ◽  
...  
Keyword(s):  
Liquid Argon ◽  
Atmospheric Neutrinos ◽  
Nucleon Decay

LIQUID ARGON DETECTORS FOR NEUTRINO PHYSICS

2009 ◽  
Vol 24 (02) ◽  
pp. 81-98 ◽  
Author(s):  
ALESSANDRO CURIONI
Keyword(s):  
Neutrino Physics ◽  
Time Projection Chamber ◽  
Liquid Argon ◽  
Short Review ◽  
Mass Hierarchy ◽  
Mixing Angle ◽  
Good For ◽  
Time Projection

In this paper we give a short review of liquid argon detectors for neutrino physics. We will first introduce noble liquid detectors with particular emphasis on liquid argon and detectors of the time projection chamber variety, and we will explain why liquid argon detectors are good for neutrino physics, in particular the measurement of the mixing angle θ13, CP-violating phase δ CP and determination of the mass hierarchy through νe appearance on a νμ beam. We will stress what we consider the main achievements and the main challenges facing liquid argon detectors for neutrino physics.

scholarly journals Optimal configurations of the Deep Underground Neutrino Experiment

2016 ◽  
Vol 31 (07) ◽  
pp. 1650020 ◽  
Author(s):  
Vernon Barger ◽  
Atri Bhattacharya ◽  
Animesh Chatterjee ◽  
Raj Gandhi ◽  
Danny Marfatia ◽  
...  
Keyword(s):  
Beam Power ◽  
Neutrino Experiment ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Near Detector ◽  
Neutrino Sector ◽  
Long Baseline ◽  
Systematic Uncertainties ◽  
Deep Underground ◽  
Using Data

We perform a comprehensive study of the ability of the Deep Underground Neutrino Experiment (DUNE) to answer outstanding questions in the neutrino sector. We consider the sensitivities to the mass hierarchy, the octant of [Formula: see text] and to CP violation using data from beam and atmospheric neutrinos. We evaluate the dependencies on the precision with which [Formula: see text] will be measured by reactor experiments, on the detector size, beam power and exposure time, on detector magnetization, and on the systematic uncertainties achievable with and without a near detector. We find that a 35 kt far detector in DUNE with a near detector will resolve the eightfold degeneracy that is intrinsic to long baseline experiments and will meet the primary goals of oscillation physics that it is designed for.

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