Determining neutrino mass hierarchy from electron disappearance at a Low energy neutrino factory

Rupak Dutta; Nita Sinha; Sushant K. Raut

doi:10.1103/physrevd.89.073011

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arXiv · 1210.6479

Determining neutrino mass hierarchy from electron disappearance at a Low energy neutrino factory

Rupak Dutta·Nita Sinha·Sushant K. Raut

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Abstract

Recent measurements of large theta_{13} by Daya Bay and RENO reactor experiments have opened up the possibility of determining the neutrino mass hierarchy, i.e. the sign of the mass squared splitting Delta m_{31}^2, the CP-violating phase delta_{CP} and the octant of theta_{23}. In the light of this result, we study the performance of a low energy neutrino factory (LENF) for determination of the mass hierarchy. In particular, we explore the potential of the nu_e$ and barν_e disappearance channels at LENF to determine the neutrino mass hierarchy, that is free from the uncertainties arising from the unknown delta_{CP} phase and the theta_{23} octant. We find that using these electron neutrino (antineutrino) disappearance channels with a standard LENF, it is possible to exclude the wrong hierarchy at 5 sigma with only 2 years of running.

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Rupak Dutta, Nita Sinha, Sushant K. Raut. 2012-10-24. Determining neutrino mass hierarchy from electron disappearance at a Low energy neutrino factory. https://doi.org/10.1103/physrevd.89.073011

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