A diproton is a hypothetical type of helium nucleus consisting of two protons and no neutrons. Diprotons are not stable, this is due to spin-spin interactions in the nuclear force, and the Pauli exclusion principle, which forces the two protons to have anti-aligned spins and gives the diproton a binding energy greater than zero A nucleus formed from two protons rapidly decays to deuterium in the proton-proton chain reaction of stellar nucleosynthesis.

References

See also

• Dineutron