  The nuclear photo-emulsion technique is used to study the information carried
by the medium energy nucleons produced in heavy ion collisions. Multiplicity,
energies as well as the angular distribution of this type of particles are
measured. Due to the difficulties in measuring the energy only some particles
having special criteria could be selected to measure their energy with
consenting accuracy. A hypothetical model is proposed to correlate the energy
of the produced particles to their emission angles so that it becomes easy to
estimate the energy distribution in terms of measured emission angle. The
proposed model is constructed upon statistical thermodynamic assumptions.
Moreover, two additional base functions are originated that play the role of
the statistical angular weight factor and the nuclear density of the compressed
nuclear matter at the moment of particle emission. The prediction of the model
are compared with complete set of measured data of the reactions of proton,
helium, carbon and neon nuclei with the composite emulsion nuclei as target at
4.2 A GeV.
