Inclusive energy spectra of protons, deuterons, and tritons were measured with a telescope of silicon and germanium detectors with a detection range for proton energies up to 200 MeV. Fifteen sets of data were taken using projectiles ranging from protons to Ar40 on targets from Al27 to U238 at bombarding energies from 240 MeV/nucleon to 2.1 GeV/nucleon. Particular attention was paid to the absolute normalization of the cross sections. For three previously reported reactions, He fragment cross sections have been corrected and are presented. To facilitate a comparison with theory the sum of nucleonic charges emitted as protons plus composite particles was estimated and is presented as a function of fragment energy per nucleon in the interval from 15 to 200 MeV/nucleon. For low-energy fragments at forward angles the protons account for only 25% of the nucleonic charges. The equal mass Ar40 plus Ca systems were examined in the center of mass. Here at 0.4 GeV/nucleon Ar40 plus Ca the proton spectra appear to be nearly isotropic in the center of mass over the region measured. Comparisons of some data with firestreak, cascade, and fluid dynamics models indicate a failure of the first and a fair agreement with the latter two. In addition, associated fast charged particle multiplicities (where the particles had energies larger than 25 MeV/nucleon) and azimuthal correlations were measured with an 80 counter array of plastic scintillators. It was found that the associated multiplicities were a smooth function of the total kinetic energy of the projectile. NUCLEAR REACTIONS U(Ne20,X), EA=240 MeV/nucleon; U(Ar40,X), Ca(Ar40,X), U(Ne20,X), Au(Ne20,X), Ag(Ne20,X), Al(Ne20,X), U(He4,X), Al(He4,X), EA=390 MeV/nucleon; U(Ar40,X), Ca(Ar40,X), U(Ne20,X), U(He4,X), U(p,X), EA=1.04 GeV/nucleon; U(Ne20,X), EA=2.1 GeV/nucleon; measured σ(E,θ), X=p,d,t.
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C3H8 nucleus. P, DEUT and TRITIUM in the final state are considered as spectators.
P, DEUT and TRITIUM in the final state are considered as spectators.
C_3 H_8 nucleus. P in the final state are considered as spectators.
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Inclusive spectra of protons emitted in the interaction of 12 C-projectiles at an energy of 3.6 GeV/nucleon and C, Cu, Sn and Pb target nuclei were measured. The analysis of the experimental data suggests that in all these interactions the main contribution to proton cross sections in the investigated kinematic region is due to emission from a moving source with a rapidity which differs greatly from the target nucleus rapidity, y t , as well as from that of the effective fireball. The properties of this source such as the excitation energy depend only slightly on the combination of the colliding nuclei.
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PROTONS INVOLVED HAVE MAXIMUM VALUE OF CUMULATIVE VARIABLE (E-PL)/M IN EVENT.
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FRAGT IS CHARGE BARYON WITH PATH < 4 CM.
FRAGT IS CHARGE BARYON WITH PATH < 4 CM.
FRAGT IS CHARGE BARYON WITH PATH < 4 CM.
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