Do Mesons Have a Baryon Number?

Baryons are made of three quarks (thus have a baryon number of 1) for example the proton (uud; charge=+1 ) and neutron (udd, charge=0), whereas mesons are made of a quark-antiquark pair (thus have a baryon number of 0).

Is a meson and baryon?

A baryon is a type of hadron, and it contains three quarks. A meson is also a type of hadron, and it contains one quark and one antiquark.

What is the difference between a meson and a baryon?

They are part of the hadron particle family – particles made of quarks. The other members of the hadron family are the baryons – subatomic particles composed of three quarks. The main difference between mesons and baryons is that mesons have integer spin (thus are bosons) while baryons are fermions (half-integer spin).