A helium nucleus, with two protons and two neutrons SPL
The inside of a proton is under a lot of pressure. The particle’s centre withstands a billion billion billion times the pressure found at the bottom of the Mariana Trench.
and his colleagues at the Thomas Jefferson National Accelerator Facility in Newport News, Virginia, made the first measurement of the intense conditions inside a proton. And they had to use a bit of trickery to do so.
Protons are made up of three fundamental particles called quarks, which are held together by a force originating from…
