List of baryons

In 2015, the LHCb collaboration at CERN definitively reported the observation of pentaquark states in the decay of bottom lambda baryons (Λ0b).

While primarily created in laboratory conditions, pentaquarks might also form naturally during neutron star formation.

The best known baryons are protons and neutrons, which make up most of the mass of the visible matter in the universe, whereas electrons, the other major component of atoms, are leptons.

These lists detail all known and predicted baryons in total angular momentum J = ⁠1/2⁠ and J = ⁠3/2⁠ configurations with positive parity.

Values in parentheses have not been firmly established by experiments, but are predicted by the quark model and are consistent with the measurements.

This table gives the name, quantum numbers (where known), and experimental status of baryons resonances confirmed by the PDG.

Despite significant research, the fundamental degrees of freedom behind baryon excitation spectra are still poorly understood.