Distinguishing between Models for Large Transverse Momentum Processes by a Measurement of Jet-associated Baryon Number*

We propose that a measurement of the number of protons and antiprotons in the hemisphere opposite a large transverse momentum proton can distinguish between two important models for large transverse momentum processes. The Parton Jet Model (PJM), where the underlying mechanism is assumed to be quark-quark scattering, is characterized by a surplus of protons over antiprotons in the jet opposite the detected proton, while the Constituent Interchange Model (CIM) predicts that the jet opposite the trigger proton be populated on the average by more antiprotons than protons. (Submitted to Phys. Rev. ) * Work supported by the U. S. Atomic Energy Commission.