Baryons
Subatomic composite hadrons made of three valence quarks held together by gluons, possessing half-integer spin (fermions).
Governing formula
Quark Content: q q q, Spin = ½, ³/₂..., Baryon Number B = 1
SI unit
Composite Fermion Class
In depth
Baryons obey the Pauli Exclusion Principle and carry a conserved baryon number B = +1 (antibaryons carry B = -1). Protons and neutrons are the lightest and most stable baryons.
Examples in the real world
Protons (uud) and neutrons (udd), as well as unstable hyperons like Lambda (ud) and Sigma particles.