Particles

Mass (MeV/c²)

Charge

Decays

Structure

Proton [2] [3] [17]

938.3

+e

Stable

Neutron [22]

939.6

0

n0 → (a) p+ e-ν^e; (b) p+ e-ν^eγ [3] [22]

Λ0 baryon

1115.6

0

Λ0 → (a) p+ π-; (b) nπ0 [3] [23]

∑+ baryon

1189.4

+e

∑+ → (a) nπ+; (b) p+ π0 [3] [24]

∑- baryon

1197.3

-e

∑- → nπ- [3] [24]

∑0 baryon

1192.5

0

∑0 → Λ0 γ [3] [25]

Ξ- baryon

1321.2

-e

Ξ- → Λ0π- [3] [26]

Ξ0 baryon

1314.7

0

Ξ0 → Λ0 π0 [3] [26]