It would seem that one way to test this might be to look at the neutrino energies
for the first neutrinos captured and see if these have more energy. I think they can see this can't they?
FYI, I'm not a particle physicist, so my opinion means nothing, but it sounds like a pretty clever idea!
I don't know about the absolute distance measurement, but the Opera data pretty conclusively shows that the relative position is unbelievably accurate. So, that seems to put a damper on any sort of random effect as this would seem to change over time, and as the satellites changed in orbit...
Another thing I wanted to add.
Distortion of the BCT waveform doesn't necessarily mean that the delays aren't accurate. It just means that different parts of the waveform would get attenuated and thus the waveform would be distorted. (see the picture). So you could accurately measure 580...
I have a dumb question:
Why is there such a large delay for the BCT? (i.e. 580 ns)
My understanding is that the BCT is a torroidal coil around the beam and then the results are sent along a cable to a digital oscilloscope.
Why would the oscilloscope be so far away? Wouldn't you think that...
Here's some more info on the BCT to scope delay calibration
http://www.ohwr.org/documents/117
It has a delay of 580 ns.
I don't completely understand the BCT or how it works. It seems to me that
10^13 protons, stripped of their electrons, are going to create some pretty
intense electric...
When each neutrino "event" happens you also need to record which
scintillator went off. As the detector itself is suspiciously
about the size of the error they are claiming (i.e. 20 m)
So the pattern matching should in theory be a little more difficult than just
sliding 2 clouds (As shown in...
Imagine matching up 2 similar clouds of points. Now start throwing away points on the right side and
you will see that the points on the left will become relatively more important.
So if you weren't careful about handling multiple neutrinos and threw away the
last ones, you would create a...
Here's a calculation
From slide 42 on http://cdsweb.cern.ch/record/1384486
They mention that they take the first event.
From the CNGS website they have data which suggests about 1 neutrino detection
for every 250 pulses.
Now then about every 250 neutrino detections SHOULD be a DOUBLE...
Some (very) rough numbers and some rough analysis (assuming 200 days
of operation/year (24 hours/day)
The number of "extractions" /year is about 2,000,000
So they are sending a pulse very roughly about every 10 seconds
With 16000 events in 2 years, they are getting about 40 neutrinos /day...