  New experimental data on transverse momentum spectra of strange particles
(KS0, K-, K*, phi,...) produced in pp collisions at sqrt s = 200 GeV obtained
by the STAR and PHENIX collaborations at RHIC are analysed in the framework of
z-scaling approach. Scaling properties of the data z-presentation are
illustrated. Self-similarity of strange particle production is discussed. A
microscopic scenario of constituent interactions developed within the z-scaling
approach is used to study constituent energy loss, proton momentum fraction and
recoil mass in dependence on the transverse momentum, strangeness, and mass of
the inclusive particle. The obtained results can be useful for understanding
strangeness origin, for searching for new physics with strange probes and can
serve as a benchmark for complex analyses of self-similar features of strange
production in heavy ion collisions.
