Determination of the neutrino mass hierarchy using a reactor neutrino experiment at ∼60 km is analyzed. Such a measurement is challenging due to the finite detector resolution, the absolute energy scale calibration, as well as the degeneracies caused by current experimental uncertainty of ∣Δm322∣. The standard χ2 method is compared with a proposed Fourier transformation method. In addition, we show that for such a measurement to succeed, one must understand the non-linearity of the detector energy scale at the level of a few tenths of percent.
@article{arxiv.1208.1551,
title = {Mass Hierarchy Resolution in Reactor Anti-neutrino Experiments: Parameter Degeneracies and Detector Energy Response},
author = {X. Qian and D. A. Dwyer and R. D. McKeown and P. Vogel and W. Wang and C. Zhang},
journal= {arXiv preprint arXiv:1208.1551},
year = {2015}
}