| Family Name | Particle Name | Charge | Mass | Lifetime |
|---|---|---|---|---|
| graviton | 0 | 0 | stable | |
| photon | 0 | 0 | stable | |
| electron | -1 | 1 | stable | |
| electron neutrino | 0 | about 0 | stable | |
| muon | -1 | 209 | 2.2e-6 | |
| muon neutrino | 0 | < 0.49 | stable | |
| tau | -1 | 3,490 | 3.0e-13 | |
| tau neutrino | 0 | < 69 | stable (?) | |
| up | +2/3 | 607 | stable | |
| down | -1/3 | 607 | stable | |
| charm | +2/3 | 2,900 | ? | |
| strange | -1/3 | 988 | ? | |
| top | +2/3 | > 100,000 | ? | |
| bottom | -1/3 | 10,000 | ? | |
| W particle | -1 | 160,000 | ? | |
| Z particle | 0 | 180,000 | ? |
| Family Name | Particle Name | Composition | Charge | Mass | Lifetime | |
|---|---|---|---|---|---|---|
| lamda | uds | 0 | 2,183 | 2.6e-10 | ||
| omega | sss | -1 | 3,272 | .8e-10 | ||
| sigma + | uus | +1 | 2,328 | .8e-10 | ||
| sigma 0 | ![]() | 0 | 2,334 | 6.0e-20 | ||
| sigma - | dds | -1 | 2,343 | 1.5e-10 | ||
| xi 0 | uss | 0 | 2,573 | 2.9e-10 | ||
| xi - | dss | -1 | 2,585 | 1.6e-10 | ||
| neutron | udd | 0 | 1,839 | * 8.98e2 | ||
| proton | uud | +1 | 1,836 | stable | ||
| J particle | ![]() | 0 | 6,060 | 1.0e-20 | ||
| kaon + | ![]() | +1 | 966 | 1.2e-8 | ||
| kaon 0 | ![]() | 0 | 974 | ** 8.9e-11 | ||
| omega | ![]() | 0 | 1,532 | 6.6e-23 | ||
| pion + | ![]() | +1 | 273 | 2.6e-8 | ||
| pion 0 | ![]() | 0 | 264 | 8.4e-17 | ||
| Explanation of Characteristics | |
|---|---|
| Composition | Hadrons are composed of quarks. The first letter of the quark's name is used in the formula. |
| Charge | Expressed as a multiple of a proton's charge, 1.60217733e-19 coulomb |
| Mass | Given in multiples of an electron's mass, 9.1093897e-31 kilograms |
| Lifetime | Average decay time in seconds. "stable" means that the particle does not decay. |
| * Stable if bound in a nucleus | |
| ** Composed of two particles; average lifetime of each given | |