Naturally Light Sterile Neutrinos in Gauge Mediated Supersymmetry Breaking

Details Naturally Light Sterile Neutrinos in Gauge Mediated Supersymmetry Breaking Naturally Light Sterile Neutrinos in Gauge Mediated Supersymmetry Breaking

1998-10-06

arxiv.org/abs/hep-ph/9810257v2

JHEP 9810:014,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, harvmac; added references

Scientific paper

10.1088/1126-6708/1998/10/014

Moduli are generic in string (M) theory. In a large class of gauge-mediated Supersymmetry breaking models, the fermionic components of such fields have very light masses, around the eV scale, and non-negligible mixing with active neutrinos, of order $10^{-4}$. Consequently, these fermions could play the role of sterile neutrinos to which active neutrinos oscillate, thus affecting measurements of solar neutrinos or of atmospheric neutrinos. They could also provide warm dark matter, thus affecting structure formation.

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