"Other experiments to test whether the neutrino is, weirdly, its own antiparticle may be feasible only if the hierarchy is inverted."
Why?
http://news.sciencemag.org/physics/2015/08/u-s-neutrino-experiments-first-result-tantalizes?utm_campaign=email-news-latest&utm_src=email
Received my Physics BS 30 years ago and ended up a thesis shy of a Physics MS. Have also taken graduate coursework in Astronautical Engineering and CSE but never completed any related degree. Wasn't really necessary, as I've been lucky enough to find work I enjoy in aerospace, specializing in...