Statistical Significance of the Gallium Anomaly
High Energy Physics - Phenomenology
2011-08-02 v3 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
Abstract
We calculate the statistical significance of the anomalous deficit of electron neutrinos measured in the radioactive source experiments of the GALLEX and SAGE solar neutrino detectors taking into account the uncertainty of the detection cross section. We found that the statistical significance of the anomaly is about 3.0 sigma. A fit of the data in terms of neutrino oscillations favors at about 2.7 sigma short-baseline electron neutrino disappearance with respect to the null hypothesis of no oscillations.
Keywords
Cite
@article{arxiv.1006.3244,
title = {Statistical Significance of the Gallium Anomaly},
author = {Carlo Giunti and Marco Laveder},
journal= {arXiv preprint arXiv:1006.3244},
year = {2011}
}
Comments
6 pages; improved analysis with correlation of theoretical uncertainty