INELASTIC SCATTERING AMPLITIJDES”
New results from inelastic two-body scattering reactions are reviewed. Although predictions of SU(3), factorization and simple Regge theory are found to be qualitatively in agreement with the data, direct channel or absorption effects afford the simplest interpretation of the detailed features of the scattering amplitudes.
A determination of the effective B and ϱ trajectories from the reaction π+p→ωΔ++
Abstract We present results of two high-statistics bubble chamber measurements of the reaction π + → ω 0 Δ ++ at incident momenta of 2.67 and 7.1 GeV/ c . The energy dependence of the natural parity exchange projection gives a Regge trajectory consistent with the accepted ϱ trajectory. The unnatural parity exchange projection gives a B trajectory consistent with our current knowledge of the pion trajectroy.
Exchange degeneracy, absorption and loops in KN and KN scattering
Abstract We show that exchange degeneracy is fully compatible with all present high-energy experimental data and even, in most cases, at surprsingly we energy. We discuss the implications of the necessary absorptive corrections. At the end we obtain loops for partial waves corresponding to a set of exchange degenerate Y o ∗ all lying on a straight-line trajectory.