Can Sterile Neutrinos Exist?

Physicists have wondered if neutrino particles come in a mysterious fourth variety. Now new experimental findings complicate the question

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Germany ,Geneva ,Genè ,Switzerland ,Marcela Carena ,Bonnie Fleming ,Ornella Palamara ,Joachim Kopp ,Theory Division At Fermilab ,Yale University ,Johannes Gutenberg University Mainz ,Los Alamos National Laboratory ,Fermi National Accelerator Laboratory Fermilab ,Northwestern University ,Liquid Scintillator Neutrino Detector ,Mini Booster Neutrino Experiment ,Fermi National Accelerator Laboratory ,Short Baseline Neutrino ,Short Baseline Near Detector ,Theory Division , ,