Summary
A precise measurement of\(\bar pp\) elastic scattering in the Coulomb strong-interaction interference region was performed at the CERN\(S\bar ppS\) Collider at a centre-of-mass energy of 541 GeV. The ratio of the real-to-imaginary part of the forward elastic-scattering amplitude was found to be ρ=0.135±0.015. The slope of the exponential fall-off of the strong-interaction part was also measured to beb=15.5±0.1 GeV−2. Using this new result, an overall fit to the data on the total cross-section and on the real part for\(\bar pp\) and pp was performed using dispersion relations. Numerical predictions are presented for total cross-sections at LHC and SSC energies.
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UA4/2 collaboration., Augier, C., Bernard, D. et al. The real part of the elastic-scattering amplitude at the\(S\bar ppS\) and predictions at LHC and SSCand predictions at LHC and SSC. Nuov Cim A 107, 2093–2102 (1994). https://doi.org/10.1007/BF02823603
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DOI: https://doi.org/10.1007/BF02823603