Anyway, here is a new combined constrained range for a non zero $\theta_{13}$ angle, favouring the Chooz result and beginning to disfavour the low estimate of MINOS. Below are the predicted limits for a year from now. At present, a $\sin^2 2 \theta_{13}$ of $0.04$ sits at the lower end of the range.
So my new prediction, near the centre of the current range, and inspired by the simplicity of mixing parameters, is:
ReplyDelete$\sin^2 2 \theta_{13} = 0.067$
from $\theta_{13} = \pi /24$. I'm sure, however, that we will soon have a better idea of the precise value.