New answers tagged particle-detectors
It comes from the fact that we need high energies to get more mass in the result. The higher energy the particles are when collided, the more mass will come out in the end due to conservation of mass-energy.
You can look at data from the ACE and Wind spacecraft at NASA's SPDF CDAWeb. Both of these spacecraft have solid state telescopes that go up to tens to thousands of keV for protons. The data is freely available to anyone.
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