Hadrodynamics with the Elusive Quarks

Abstract

Today it has become almost inconceivable to talk about hadrons and their interactions without thinking about their so-called constituents: the quarks. Their number, as we are witnessing, is having an ominous tendency to increase under the effect of the exciting discoveries of new particles and unexpected lepton yields in e+e− and ν-nucleon collisions. However, I believe that after the experimental situation will more or less settle the usefulness of the quark notion will definitely be preserved even after some possibly inevitable proliferation.