Richard van de Water

"Measuring Active-Sterile Neutrino Oscillations with a Stopped Pion Neutrino
Source"

The question of the existence of light sterile neutrinos is of great interest
in many areas of particle physics, astrophysics, and cosmology.  Furthermore,
should the MiniBooNE experiment at Fermilab confirm the LSND oscillation
signal, then new novel measurements are required to identify the mechanism
responsible for these oscillations. Possibilities include sterile neutrinos,
CP or CPT violation, variable mass neutrinos, and Lorentz violation.  In this
talk, we consider an experiment at a stopped pion neutrino source to
determine
if active-sterile neutrino oscillations with dm2 greater than 0.1 eV2 can
account for the signal. By exploiting stopped pion decay to produce a
monoenergetic muon neutrino source, and searching for variations in the rate
of the neutral current reaction off Carbon, we show that a convincing test
for
active-sterile neutrino oscillations can be performed.