diprotonとは 意味・読み方・使い方

語源

From di- +‎ proton.

名詞

diproton (plural diprotons)

1. A hypothetical particle consisting of two protons and no neutrons; a helium-2 nucleus. Presumably an intermediate step in the fusion of hydrogen into helium.

豆知識

What happens in a star is probably something like this: protons (H nuclei) move so fast that they come together despite their Coulomb repulsion, forming a diproton. Usually the two protons then separate. But very rarely they stay together, and one of them turns into a neutron, resulting in heavy hydrogen: deuterium.