Comments by "N Marbletoe" (@nmarbletoe8210) on "Could we create dark matter? - Rolf Landua" video.

  1. Even if you can't see a dark matter particle flying away from the collision, you could tell that some momentum was missing when you add up all the particles you can see. Given this, you could probably then calculate the speed and mass of the dark matter particle.
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  2. 1. I think you are right, it can't decay quickly. The Higgs does, but dark matter just can't for that reason. 2. They'd find it by noticing missing momentum. That's not so different from how they found the Higgs, which decays too quickly to measure. Instead of counting up photons of energy x, they'd have to count events that had missing momentum and plot that. I guess it would show up as a bump on such a graph.
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