Total cross-section data are presented for negative pions, kaons, and antiprotons on protons and deuterons in the momentum range 20 GeV/ c to 65 GeV/ c in 5 GeV/ c steps.
Axis error includes +- 0.0/0.0 contribution.
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The angular distributions of K+p and π+p backward elastic scattering have been measured at 5.2 and 6.9 GeV/c. Backward π-p and K-p elastic scattering were studied at 6.9 GeV/c. Backward peaks are observed in K+p scattering with an energy dependence of the form s−4.
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We present results of measurements of the differential cross sections for the following elastic-scattering reactions: (i) π + p at 5.2 and 7.0 GeV/ c in the range −1 < u < 0.02 (GeV/ c ) 2 , (ii) π − p at 7.0 GeV/ c in the range −0.7 < u < 0.05 (GeV/ c ) 2 , (iii) K + p at 5.2 and 7.0 GeV/ c in the ranges −1 < t < −0.01 (GeV/ c ) 2 and −1 < u < 0 (GeV/ c ) 2 , and K − p at 7.0 GeV/ c in the range −1 < u < 0 (GeV/ c ) 2 .
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SIDE GEOMETRY.
Using wire spark chambers we have observed the backward production of ϱ + mesons in the reaction π + p → p (missing mass) at 5.2 GeV/ c . In the four-momentum interval −0.80 < u < −0.006 (GeV/ c ) 2 the angular distribution shows a backward peak. In contrast to backward π + p elastic scattering, there is no dip in the angular distribution at u ≈ −0.15 (GeV/ c ) 2 . The ϱ + decay is found to be compatible with isotropy.
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Total cross-section data are presented for protons, positive pions and positive kaons on protons and deuterons in the momentum range 15 GeV/ c to 60 GeV/ c in 5 GeV/ c steps.
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π − p , K − p and p p total cross-sections are measured at momenta up to 65GeV/ c with statistical accuracy 0.3 ÷ 0.6% and systematical (scale) error ≈ 0.4%.
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