Classification of particles

HADRONS feel the strong nuclear interaction are made up of quarks

LEPTONSdo not feel the strong nuclear interactionthey are fundamental particles

MESONS quark composition is a quark and an antiquark pair

BARYONS made up pf three quarks proton is the only stable baryon, all others decay into a proton.

Particles are split into two main groups:

hadrons are further split up into two groups:

⇘

⇘

⇙

⇙

examples are: electron neutrino muon

examples are: proton neutron sigma particle

examples are: pion K meson

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