3 Neutrino Oscillation and Off-axis Experiments. David Barnhill UCLA May 30, 2003. 2 Neutrino Oscillations. Already talked about two different n oscillations : Solar n Atmospheric n
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May 30, 2003
With m2sol ~ 5 x 10-5 eV2 & m2atm ~ 3 x 10-3 eV2
But when plotting tan2 and not sin22, we know m1<m2<m3
How many parameters?
Using 3 ranges from solar, atmospheric and reactor data:
(To leading order)
If the experiment is performed at the peak of this probability:
Using CHOOZ limit, maximum appearance probability is 5%
2 neutrino case:
Neutrino energy in pion rest frame:
Set * to 90°:
We see that as theta increases, there is a maximum for the neutrino energy with a wide range of pion energies contributing to it.
If we desire an enhancement at a particular neutrino energy, we look close to the max as given on the previous page.