Baryon | Pair of mesons | I | I3 | S | Binding quarks | Binding energy | Mass (MeV) (estimated) | Mass (MeV) (measured) |
p+ |
| 1 | 1 | 0 | uu or | 664.02 | 938.27 (setting) | 938.27 |
p0 (n0) |
| 1 | 0 | 0 | ud or | 664.02 | 943.16 | 939.57 |
p− |
| 1 | −1 | 0 | or dd | 664.02 | 938.27 | |
Λ0 | or | 0 | 0 | 0 | us or | 482.43 | 1115.68 (setting) | 1115.68 |
Σ+ |
| 1 | 1 | 0 | us or | 482.43 | 1169.76 | 1189.37 |
Σ0 |
| 1 | 0 | 0 | us, ds or , | 482.43 | 1165.27 | 1192.64 |
Σ− |
| 1 | −1 | 0 | ds or | 482.43 | 1169.76 | 1197.45 |
Ξ+ |
|
|
| 1 | , | 482.43 | 1316.61 | |
Ξ− |
|
|
| −1 | us, ds | 482.43 | 1316.61 | 1321.71 |
Ξ0 | or | 0 | 0 | 0 | us, ds or us, ds | 482.43 | 1320.54 | 1314.86 |