Jetlike nature of inclusive hadronic interactions

The dominant inclusive systems formed in the beam and target hemispheres of hadronic reactions are explored for jetlike characteristics in terms of sphericity, thrust, and energy and particle flow. We compare $\text{50}\text{GeV}\text{/c π}{}^{\mathrm{?}}\text{p and}\text{p}\text{p and}\text{100}\text{GeV}\text{/c π}{}^{\mathrm{+}}\text{p and pp}$ interactions and find substantial similarities with neutrino-induced hadronic systems and with hadronic jets in e⁺e^? annihilations. We find no strong evidence for differences in angular size between the forward and backward hadronic systems formed in hadron-hadron reactions, and the single-quark jets and the diquark jets which arise variously in lepton-lepton and lepton-hadron reactions.