A Proposal to Measure Cross Sections for pp --> pX, nX as a Function of s and M^2X Using the Internal Target Facility at NAL

A simple counter experiment is proposed to investigate the s and s/M{sup 2} dependence of the invariant cross section for the single particle inclusive reactions pp {yields} pX and pp {yields} nX in a limited region of phase space. 4 < s/M{sup 2} < 20, 40 < s < s{sub max}, 0.1 < |t| < 0.6 near the kinematic limit. The neutron reaction will be studied directly, using a hydrogen jet, and also by measuring the difference between pp {yields} pX and pD {yields} pX using a deuterium jet. The latter will provide information on the line reversed reaction pn {yields} pX. The proposed experiment will use the internal target and aims to provide information on specific theoretical issues in a very short time interval. These issues are: (1) relatively importance of PPP and PPR couplings in the triple Regge framework; and (2) diffractive versus triple Regge approaches to the understanding of single particle inclusive reactions.