First observation of $\Sigma^-$ - ${\rm e}^-$ elastic scattering in the hyperon beam experiment WA89 at CERN

Ξ− and distributions in hadron–nucleus interactions

“…The calculated exponents a are larger for the neutron than the pion, in agreement with the WA89 measurements [17]. We find a ≈ 4.9 for C and 5.8 for Cu.…”

“…Dominance of the leading-twist cross section at low to intermediate x F results in a nearer-to-linear integrated α, as observed by WA89 [17].…”

Studies of charm production and a search for exotic states at the CERN-SPS hyperon beam

“…Other results from WA89, for which the RICH was less important, are the measurement of di!erential cross sections for the production of hyperons and hyperon resonances [9,17], which contribute to the large amount of experimental data on hyperon production in proton and hyperon beams. Here the leading particle e!ect is demonstrated in great detail.…”

“…Here the leading particle e!ect is demonstrated in great detail. We also measured the inclusive polarization of hyperons [18].…”

“…1, taken from Ref. [10] shows the production asymmetries A"( * ! ,* )/( * # ,* ), where * and ,* are the cross-section for the leading and non-leading charmed particle, resp.…”