The (3+2) Neutrino Mass Spectrum and Double Chooz

Understand

The implications of extra sterile neutrinos for the Double Chooz experiment is expounded.

• The so-called ``3+2'' mass spectrum with 2 sterile neutrinos mixed with the active ones, is still allowed by the global neutrino data including MiniBooNE.
• We probe its impact on the resultant reactor antineutrino signal at the near and far detector of the Double Chooz experiment.
• The oscillations driven by the additional mass squared difference due to the sterile states bring an energy independent constant suppression at both the near and far detectors.