Scientists have peered inside protons and discovered that quarks and gluons, their fundamental building blocks, experience ...

Particles that are entangled have their properties connected ... Mixtures of three quarks are called baryons — such as the proton and the neutron — and combinations of quarks and their ...

Predicted in 1966, the 'GZK cutoff' — named after Kenneth Greisen, Georgiy Zatsepin and Vadim Kuz'min — arises because cosmic-ray protons with ... based on entangled photon states.