scholarly journals Three-neutrino oscillations of atmospheric neutrinos,θ13, neutrino mass hierarchy and iron magnetized detectors

2005 ◽  
Vol 712 (1-2) ◽  
pp. 392-410 ◽  
Author(s):  
Sergio Palomares-Ruiz ◽  
S.T. Petcov
2008 ◽  
Vol 136 (4) ◽  
pp. 042015
Author(s):  
Raj Gandhi ◽  
Pomita Ghoshal ◽  
Srubabati Goswami ◽  
Poonam Mehta ◽  
S Uma Sankar ◽  
...  

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Jürgen Brunner

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.


2010 ◽  
Vol 25 (26) ◽  
pp. 2255-2266 ◽  
Author(s):  
RAJ GANDHI ◽  
POMITA GHOSHAL ◽  
SRUBABATI GOSWAMI ◽  
S. UMA SANKAR

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.


2003 ◽  
Vol 669 (1-2) ◽  
pp. 255-276 ◽  
Author(s):  
J. Bernabéu ◽  
Sergio Palomares-Ruiz ◽  
S.T. Petcov

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