Particle Production at Large Transverse Momentum in Nucleus-nucleus Collisions*

Based on a multiple hard scattering picture we derived simple relations between inclusive cross sections for large transverse momentum particle production in nucleus-nucleus, nucleon-nucleus and nucleonnucleon scatterings. The relations are compared with the recent data for 1~' production in aa collisions at high energy. Submitted to Physical Review D * Work supported in part by the Department of Energy, contract DE-AC03-76SF00515, by the NSF Grant No. P-F7F073-P (G.W.), and by the Research Board of the University of Illinois at Chicago Circle (U.P.S.). + Permanent address: Institute of Nuclear Research, 00-681 Warsaw, Poland.