Sensitivity to the Neutrino Mass Hierarchy
High Energy Physics - Phenomenology
2016-04-27 v4 High Energy Physics - Experiment
Statistics Theory
Statistics Theory
Abstract
In the next decade, a number of experiments will attempt to determine the neutrino mass hierarchy. Feasibility studies for such experiments generally determine the expected value of Delta chi^2. As the hierarchy is a discrete choice, Delta chi^2 does not obey a one degree of freedom chi^2 distribution and so the number of sigmas of confidence of the hierarchy determination is not the square root of the expected Delta chi^2. We present a simple formula for the sensitivity to the hierarchy that can be expected from the median experiment as a function of the expected Delta chi^2.
Keywords
Cite
@article{arxiv.1305.5150,
title = {Sensitivity to the Neutrino Mass Hierarchy},
author = {Emilio Ciuffoli and Jarah Evslin and Xinmin Zhang},
journal= {arXiv preprint arXiv:1305.5150},
year = {2016}
}
Comments
8 pages, 5 eps figures, v4 include both one-sided and two-sided Gaussian conversion