Yeah, interferometers give endless fascination.
Still, if the folks at LHC can't recognize what their toy has found then they aren't ready for a bigger toy. I mean it's one thing to
overlook the fact that the Higgs boson (
H0) is dark matter (specifically a
WIMP: weakly-interacting massive particle) but quite another to
deny that that's what LHC found. Several times in that
video, Dr. Copland said the LHC
failed to find dark matter. That's just not correct!
H0 is fundamentally electrically neutral (like a
neutrino, not a neutral composite like a
neutron). Its also massive and it participates in weak interaction, as is clear from the fact it decays in about 1.6 x 10
-22 sec. Interestingly, the
H0 decay products include a pair of photons (if you believe in them) but this is a pair creation phenomenon rather than an EM interaction. It ends up as two muon/anti-muon pairs or something else that's net electrically neutral. The photons are mostly "implied" by these products.
Of course, it would be nice if they had found a more stable WIMP but one wonders if they'd know it if they had.