Baryon

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A baryon is a subatomic particle that consists of three quarks.

As baryons consist of quarks, they are hadrons. Baryons have half-integer spin, and are thus fermions.

F E R M I O N S

H A D R O N S

B a r y o n s

p
proton p̅
antiproton

n
neutron n̅
antineutron

Λ
lambda

⋮

···

The name "baryon" (Greek: heavyweight) was coined in 1953 by Dutch physicist Bram Pais.