As nouns the difference between diproton and diphoton
is that diproton is a hypothetical particle consisting of two protons and no neutrons while diphoton is a resonance particle formed from two identical photons.
diproton
Noun
(
en noun)
A hypothetical particle consisting of two protons and no neutrons.
diphoton
English
Noun
(
en noun)
(physics) A resonance particle formed from two identical photons