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Adamovich, M.I.; Alexandrov, Y.A.; Barberis, D.; Beck, M.; Berat, C.; Beusch, W.; Boss, M.; Brons, S.; Bruckner, W.; Buenerd, M.; Busch, C.; Buscher, C.; Charignon, F.; Chauvin, J.; Chudakov, E.A.; Dersch, U.; Dropmann, F.; Engelfried, J.; Faller, F.; Fournier, A.; Gerassimov, S.G.; Godbersen, M.; Grafstrom, P.; Haller, T.; Heidrich, M.; Hubbard, E.; Hurst, R.B.; Konigsmann, K.; Konorov, I.; Keller, N. ... view all 63 authors View less authors (2000)
Publisher: Springer-Verlag
Languages: English
Types: Article
Subjects: QC

Classified by OpenAIRE into

arxiv: High Energy Physics::Experiment, Nuclear Experiment
The production of charmed particles by 340 GeV/c momentum Sigma(-) was studied in the hyperon beam experiment WA89 at the CERN-SPSI using the Omega-spectrometer. In two data-taking periods in 1993 and 1994 an integrated luminosity of 1600 mu b(-1) on copper and carbon targets was recorded. From the reconstruction of 930 +/- 90 charm particle decays in 10 decay channels production cross sections for D! D, D-s(-) and Lambda(c)(+) were determined in the region x(F) gt 0. Assuming an Al dependence of the cross section on the nucleon number, we calculate a total c (c) over bar production cross section of sigma(c (c) over bar)(x(F) gt 0) = 5.3 +/- 0.4 (stat) +/- 1.0 (syst) + 1.0 (Xi(c)) mu b per nucleon. The last term is an upper limit on the unknown contribution from charmed-strange baryon production.
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