Total cross sections for π − , K − and p on protons and deutrons have been measured in the momentum range 15 to 60 GeV/ c . Total cross sections for particle interactions with neutrons have been determined with an energy dependent Glauber correction. Using the positive particle data obtained earlier with the same experimental apparatus, the differences of total cross sections for particles and antiparticles as well as for particles belonging to the same isospin multiplet have been calculated.
THESE DATA WERE PREVIOUSLY PUBLISHED IN YU. P. GORIN ET AL., SJNP 15, 530 (1972) OR YF 15, 953 (1972).
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In a new measurement of proton total cross sections at 3.00 GeV/c, the p−d total cross section is found to be lower than a previous measurement by 1.17±0.09 mb. This implies a corresponding new value for the total cross section for I=0 which is 2.18±0.27 mb lower than the previous value. Possible sources of systematic error are discussed.
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The total-cross-section difference in pure longitudinal spin states for p−d interactions has been measured at momenta from 1.1 to 6 GeV/c. Spin-dependent Glauber-type corrections and other corrections have been made to obtain ΔσL(pn) and ΔσL(I=0). These measurements are of fundamental interest and will also help in determining the existence and nature of dibaryon resonances.
CORRECTED FOR BOTH ELASTIC AND BREAKUP COULOMB-NUCLEAR INTERFERENCE. AUTHORS ALSO ESTIMATE DEUTERIUM CORRECTIONS TO DEDUCE CORRESPONDING P N AND I=0 VALUES.
Neutron-proton total cross-sections were measured in the momentum range from 8 GeV/ c to 21 GeV/ c with an accuracy of better than 2% using a 0 o neutron beam at the CERN Proton Synchrotron. The np total cross-section drops from 39.7 mb at 8 GeV/ c at 21 GeV/ c , and thus follows closely the pp total cross-sections in this momentum interval.
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Measurements have been made of the total cross sections σ(p−p) and σ(p−d) over the laboratory momentum range 1.1 to 8 GeV/c, with relative errors of 0.1%. The absolute accuracies of these cross sections are limited to 0.3% by lack of information which will allow the Coulomb-nuclear interference to be calculated accurately. Values of the total cross sections σ(p−n) and σ(I=0) are deduced by assuming the Glauber correction. Structure is observed in σ(p−p) near a mass value of 2.75 GeV/c2; its interpretation is discussed. σ(I=0) rises rapidly in the range 2.3 to 2.9 GeV/c2, and this is attributed to the onset of strong inelastic scattering.
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Total cross sections of π ± , K ± , p and p on protons and deuterons have been measured at 6 momenta between 200 and 370 GeV/ c .
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