[ExI] More on FTL Neutrinos
john clark
jonkc at bellsouth.net
Sun Oct 23 16:54:11 UTC 2011
With a little luck in a few weeks we may know if this neutrino moving
faster than light stuff is a bride of cold fusion fiasco or the greatest
development in physics since the Quantum Mechanics revolution.
http://news.sciencemag.org/scienceinsider/2011/10/faster-than-light-result-to-be.html?ref=hp
"The new measurements will involve a change in the CERN neutrino
beam. CERN makes the particles by colliding proton pulses with a
graphite target, with
each pulse being about 10,500 nanoseconds long. CERN has now
split these pulses up so that each one consists of bunches lasting 1 to 2
nanoseconds;
bunches are separated by gaps of 500 nanoseconds. The change
means that it will be possible to tie each neutrino event recorded
inside OPERA to a
specific proton bunch, thus enabling a very precise measurement
of the time it takes neutrinos to travel between the two labs.
Previously, the
collaboration had to carry out a statistical analysis to
establish the time-of-flight, which involved comparing the temporal
distribution of protons
generated at CERN with that of the neutrinos detected at Gran
Sasso. Critics had argued that this analysis might not be reliable."
"Sources suggest that the collaboration will carry out the
measurements over a period of 10 days, probably starting next week, and
that in that time it
should intercept around 12 neutrinos. It's possible that will
generate enough data to disprove the announced result, or else to
confirm an important
part of the analysis behind the result." John K Clark
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