An analysis of forward and near forward elastic scattering amplitudes for pp and antipp collisions

We present the results, which analyze for antipp and pp elastic scattering the rho values (ratios of the real to the imaginary parts of the forward nuclear scattering amplitudes), the total (hadronic) cross sections sigma, and the b values, the nuclear slope parameters. The predictions of the analyses, from √s>5 GeV, is compared with the recently measured values of sigma and b at the SPS collider. The analysis has also been redone to include new ISR data available from R211 at √s=62.5 GeV, in order to estimate ''odderon'' contributions, i.e., contributions from odd amplitudes with unconventional (non-Reggeon) energy dependence. Limits of approximately 1% are placed on these amplitudes. Our analysis has been extrapolated up to 100 Tev, to give sigma, rho and b predictions for cosmic ray and future collider energies