Experimental properties of neutrino-induced jets

A sample of about 2000 charged-current neutrino-proton interactions with neutrino energy greater than 10 GeV produced in the 15 ft. hydrogen bubble chamber at Fermilab using a broad band neutrino beam is analysed. The details of the hadrons produced are studied and good agreement with the quark-parton model and present parametrizations of quark fragmentation (D) functions is found. The D functions are found to be independent of Q2 and W (total hadronic mass) for W > 4 GeV, in agreement with the model. The height of the rapidity plateau in the quark (current) fragmentation region is compared to that of the di-quark (target) fragmantation region and the two are found to agree. The mean transverse momentum Psub(T) of the hadrons is studied for its Q2 and Feynman-X dependence. A sizeable increase of with Feyman-X is found which agrees, however, with longitudinal phase space model. No statistically significant dependence of on Q2, up to Q2 = 64 GeV2 is found although the highest momentum hadrons are consistent with a mild Q2 dependence. There are no effects of high 'primordial' parton momentum apparent in the data. No effects of gluon radiation are found in the Q2 dependence of the phase space density of particle production near zero c.m. rapidity. (Auth.)