  In the OPERA experiment, the time of arrival of the neutrino light curve at
LNGS is defined by a best-fit to the generating proton PDF at CERN. By a two
parameter matched filtering procedure, we determine that the OPERA neutrino
light curve is narrower by about 0.4-0.5% relative to the proton PDF. The
results indicate as yet undetermined physics in the creation of neutrinos in
CERN and a reduced significance of the OPERA detection to less than 4 $\sigma.$
