Lambda baryon

Lambda baryon
Quark structure of the lambda baryon.
Composition
  • Λ0
    : uds
  • Λ+
    c
    : udc
  • Λ0
    b
    : udb
StatisticsFermionic
FamilyBaryons
InteractionsStrong, weak, electromagnetic, and gravity
Types3
Mass
  • Λ0
    : 1115.683±0.006 MeV/c2
  • Λ+
    c
    : 2286.46±0.14 MeV/c2
  • Λ0
    b
    : 5619.60±0.17 MeV/c2
Spin12
Isospin0

The lambda baryons (Λ) are a family of subatomic hadron particles containing one up quark, one down quark, and a third quark from a higher flavour generation, in a combination where the quantum wave function changes sign upon the flavour of any two quarks being swapped (thus slightly different from a neutral sigma baryon, Σ0
). They are thus baryons, with total isospin of 0, and have either neutral electric charge or the elementary charge +1.