Charge asymmetries for D, Ds and Λc production in Σ-nucleus interactions at 340 GeV/c
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CERN experiment WA89 has studied charmed particles produced by a Σ-beam at 340GeV/c on nuclear targets. Production of particles which have light quarks in common with the beam is compared to production of those which do not. Considerable production asymmetries between D- and D%2b, D-s and D%2bs and Λc and Λc are observed. The results are compared with pion beam data-and with theoretical calculations.
