Sterile neutrinos in string derived models

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...

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Veröffentlicht in:The European physical journal. C, Particles and fields Particles and fields, 2018-10, Vol.78 (10), p.1-10, Article 867
1. Verfasser: Faraggi, Alon E.
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Sprache:eng
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Zusammenfassung: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.
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-018-6345-4