Baryons are characterized by a baryon number, B, of 1. Their antiparticles, called antibaryons, have a baryon number of −1. An atom containing, for example, one proton and one neutron (each with a baryon number of 1) has a baryon number of 2.

How do you identify baryons?

Hence, a particle is a baryon if and only if there is one net proton among its ultimate decay products. Baryons are made up of 3 quarks. All quarks have baryon number B = 1/3, and all anti-quarks have baryon number B = -1/3. Everything else in the table besides the baryons and leptons is called a meson.

How do you calculate strangeness?

The strangeness of a particle is equal to the number of strange quarks of the particle. Strangeness conservation requires the total strangeness of a reaction or decay (summing the strangeness of all the particles) is the same before and after the interaction.