Resolving the reactor neutrino anomaly with the KATRIN neutrino experiment
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2011
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Abstract
The KArlsruhe TRItium Neutrino experiment (KATRIN) combines an ultra-luminous molecular tritium source with an integrating high-resolution spectrometer to gain sensitivity to the absolute mass scale of neutrinos. The projected sensitivity of the experiment on the electron neutrino mass is 200 meV at 90% C.L. With such unprecedented resolution, the experiment is also sensitive to physics beyond the Standard Model, particularly to the existence of additional sterile neutrinos at the eV mass scale. A recent analysis of available reactor data appears to favor the existence of such a sterile neutrino with a mass splitting of |Δmsterile|2⩾1.5 eV2 and mixing strength of sin22θsterile=0.17±0.08 at 95% C.L. Upcoming tritium beta decay experiments should be able to rule out or confirm the presence of the new phenomenon for a substantial fraction of the allowed parameter space.| Reference Key |
barrett2011physicsresolving
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| Authors | Joseph F. Formaggio,J. Barrett;Joseph F. Formaggio;J. Barrett; |
| Journal | physics letters b |
| Year | 2011 |
| DOI | 10.1016/j.physletb.2011.10.069 |
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