The Drift by Sanford Lab, where our
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Facebook Instagram and Twitter. So when
we see a particle collide with a xenon
atom inside LZ, how can we tell whether
that was truly dark matter or not?
This becomes a really important question
for us, because the vast majority of
things we see in our detector are just
the interactions of everyday particles
like gamma rays, electrons, neutrinos and
neutrons and these are known as a
background. And we have to have a robust
way of separating that background from a
true dark matter signal. So the first way
we do that on LZ is with the veto
system so we have in LZ, not just one
detector, but three detectors that work
together to help us understand what's
happening. When we see a particle
interact the principle is that if dark
matter came into our experiment the
chances of it actually doing something
is so so so tiny it's basically
impossible that we'll see it do
something twice both in the main
detector and one of the vetoes so if we
see a signal in both the main detector
and the veto, we can immediately say that
event is not dark matter and throw away.
