Large-psub(T) π0 production with pion beams and dominance of the subprocess quark + quark → baryon + antiquark

The predictions of the subprocesses M + q → M + q, q + anti q → M + M, q + q → B + anti q, for large-psub(T) π0 inclusive production in π-p collisions, are compared with the data. Calculations performed with various models show, in a model independent way, that q + q → B + anti q is dominant in pp collisions. (Auth.)