Search for sterile neutrinos as another research objective of $θ_{13}$ experiments at reactors

V. Kopeikin; L. Mikaelyan; V. Sinev

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arXiv · hep-ph/0310246

Search for sterile neutrinos as another research objective of $θ_{13}$ experiments at reactors

V. Kopeikin·L. Mikaelyan·V. Sinev

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Abstract

Searches for mass-3 component in the electron neutrino flavor state $\sinθ_{13}$ and for sterile neutrinos can be carried out in the same small mixing angle antineutrino oscillation experiment at a reactor. As an example we consider a layout, which involves several movable antineutrino spectrometers, stationed at distances 1700 m $-$ 50 m from a reactor. The experiment can scan neutrino mass parameter interval $\sim$(0.5$-$0.001) eV$^{2}$ and have there typical sensitivity to $\sin^{2}2θ$ at a level of 0.015$-$0.02. The signature for sterile neutrino is disappearance observed at mass parameter $Δm^{2}_{new}$ different from $Δm^{2}_{atm} \approx 2\times 10^{-3}$ eV$^{2}$. In any case existing constraints both on $\sinθ_{13}$ and on sterile neutrinos can considerably be improved.

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V. Kopeikin, L. Mikaelyan, V. Sinev. 2003-10-23. Search for sterile neutrinos as another research objective of $θ_{13}$ experiments at reactors. https://arxiv.org/abs/hep-ph/0310246

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