Hidden interactions of sterile neutrinos as a probe for new physics

Recent results from neutrino experiments show evidence for light sterile neutrinos which do not have any Standard Model interactions. In this work, we study the hidden interaction of sterile neutrinos with an "MeV-scale" gauge boson (the [nu] sub(s) HI model) with mass M sub(X) and leptoni...

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Bibliographic Details
Published in:Physical review. D 2016-03, Vol.93 (5), Article 053003
Main Authors: Tabrizi, Zahra, Peres, O. L. G.
Format: Article
Language:English
Subjects:
Bosons
Constants
Cosmology
Coupling
Field strength
Gravitation
Neutrinos
Standard model (particle physics)
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Summary:Recent results from neutrino experiments show evidence for light sterile neutrinos which do not have any Standard Model interactions. In this work, we study the hidden interaction of sterile neutrinos with an "MeV-scale" gauge boson (the [nu] sub(s) HI model) with mass M sub(X) and leptonic coupling g- sub(l). By performing an analysis on the [nu] sub(s) HI model using the data of the MINOS neutrino experiment, we find that the values above G sub(X)/G sub(F)=92.4 are excluded by more than 2[sigma] C.L., where G sub(F) is the Fermi constant and G sub(X) is the field strength of the [nu] sub(s) HI model. Using this model, we can also probe other new physics scenarios. We find that the region allowed by the (g-2) sub([mu]) discrepancy is entirely ruled out for M sub(X)[1.6x10 super(-2). This exclusion, however, does depend on the value of g- sub(l) .
ISSN:2470-0010
2470-0029
DOI:10.1103/PhysRevD.93.053003