Dangers of Unphysical Regions

1996/05/21 by Matts Roos, Roos, Matts, Leonid A. Khalfin +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/9605008

8 pages, no figures or tables

arxiv created 1996/05/21 · arxiv updated 2009/11/30

Abstract

We discuss the appearance of negative numbers of events in radiochemical experiments and negative squared antineutrino mass m²_νe in tritium beta decay. Going beyond the standard discussion about how to extract upper limits in those cases, we show that the problem is much more profound. We explain the circumstances which are the likely cause of the persistently negative values of m²_νe in all modern tritium beta decay experiments.

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