Sterile neutrinos in string derived models |
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Authors: | Alon E Faraggi |
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Institution: | 1.Department of Mathematical Sciences,University of Liverpool,Liverpool,UK |
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Abstract: | The MiniBooNE collaboration recently reported further evidence for the existence of sterile neutrinos, implying substantial mixing with the left-handed active neutrinos and at a comparable mass scale. I argue that while sterile neutrinos may arise naturally in large volume string models, they prove more of a challenge in heterotic-string models that replicate the Grand Unified Theory structure of the Standard Model matter states. Sterile neutrinos in heterotic-string models may imply the existence of an additional Abelian gauge symmetry of order 10–100 TeV. |
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