Total neutron cross-sections may not be what they seem to be

Lambda and neutral-kaon production is studied in K−p interactions at 3.93 and 14.3 GeV/c. Topological inclusive cross-sections are given at both energies. Invariant cross-sections for lambdas and neutral kaons are presented as a function of the Feynmanx-variable and are found to decrease in magnitude and vary their shapes with energy. The\(AK\overline K \) production, which represents (9±2)% and (29±3)% of the lambda inclusive cross-section at 3.93 GeV/c and 14.3 GeV/c respectively, yields mainly backward lambdas. The shapes of the transverse-momentum invariant distributions vary withx, but are roughly independent of energy. The lambda polarization is studied as a function ofx at both incident momenta: for fast lambdas it is negative, as observed in reactions where nucleon exchange is dominant.

Inclusive production of lambda and neutral kaon in K−p interactions at 3.93 GeV/c and 14.3 GeV/c

K+d interactions between 0.6 and 1.5 GeV/c

A determination of the I = 32 Kπ elastic-scattering cross section from the reaction K−n → pK−π− at 3 GeV/c

The pi K scattering lengths are obtained from a dispersion relation analysis of recent phenomenological pi K phase-shifts, and the results are compared with the predictions of current algebra.

A. Verglas

Papers

Cross sections of final states produced in KN interactions at 3 GeV/c

Y0∗ (1520) production and decay in the reaction K−n → Y0∗(1520)π− at 3 GeV/c

Search for negatively charged meson near 960 MeV