The process p + nucleon → V0+ anything has been studied at 300 GeV for V0 = Λ0, Λ0, and KS0. The data are consistent with a simple Mueller-Regge formulation in the appropriate limit. Values of α(t) computed from the data agree with those expected from the simplest triple-Regge diagrams. If the pomeron is not a pure SU(3) singlet, a similar diagram is consistent with the Feynman x-dependence of the observed polarization of inclusively produced Λ0.
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We have obtained data on inclusive production of A °, Ks° , and ~0 by 300 GeV protons in the Fermilab neutral hyperon beam. At angles from 0 to 9 mr, and in the higher range of Feynman x, the invariant cross sections converge to a single-term triple-Regge behavior. Fits to the data yield values of a(t) consistent with K* (K**) exchange, with ~ exchange, and with Regge-like behavior of a strange di-baryon system for A °, K ° and ~o, respectively. Interference between K* and K** exchange is consistent with the Feynman x-dependence of the A ° polarization observed in the same data \[1\ ]. In order for the triple-Regge representation of this interference to * Present address: Argonne National Laboratory, Argonne, Illinois, 60439. ** Present address: Brookhaven National Laboratory, Upton, Long Island, NY 11973. *** Work supported in part by the National Science Foundation. + Work supported in part by the US Energy Research and Development Administration.