The quark-antiquark pair production mechanism in a quark jet

It is assumed that anti qq pairs in a quark jet are generated similarly to e+e- pairs in a constant uniform electric field. In this way relative yield and a lower bound for the average transverse momenta (ATM) of all quark flavors are obtained. In particular, the ATM of strange quarks would be larger than those of nonstrange ones. From an analysis of the mass dependence of the widths of the parent-trajectory hadrons an estimation of the radius of the colour electric field tube is obtained. (Auth.)