2000
Titel

Determination of the total cc production cross section in 340 GeV/c Sigma- nucleus interactions
Abstract
The production of charmed particles by 340 GeV/c momentum - was studied in the hyperon beam experiment WA89 at the CERN-SPS, using the -spectrometer. In two data-taking periods in 1993 and 1994 an integrated luminosity of 1600 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, Ds- and c+ were determined in the region xF > 0. Assuming an A1 dependence of the cross section on the nucleon number, we calculate a total cc production cross section of cc(xF > 0) = 5.3 ± 0.4 (stat) ± 1.0 (syst) + 1.0 (c) b per nucleon. The last term is an upper limit on the unknown contribution from charmed-strange baryon production.
Author(s)
Adamovich, M.I.
Alexandrov, Y.A.
Barberis, D.
Beck, M.
Bérat, C.
Beusch, W.
Boss, M.
Brons, S.
Brückner, W.
Buénerd, M.
Busch, C.
Büscher, C.
Charignon, F.
Chauvin, J.
Chudakov, E.A.
Dersch, U.
Dropmann, F.
Engelfried, J.
Faller, F.
Fournier, A.
Gerassimov, S.G.
Godbersen, M.
Grafström, P.
Haller, T.
Heidrich, M.
Hubbard, E.
Hurst, R.B.
Königsmann, K.
Konorov, I.
Keller, N.
Martens, K.
Martin, P.
Masciocchi, S.
Michaels, R.
Müller, U.
Neeb, H.
Newbold, D.
Newsom, C.
Paul, S.
Pochodzalla, J.
Potashnikova, I.
Povh, B.
Ransome, R.D.
Ren, Z.
Rey-Campagnolle, M.
Rosner, G.
Rossi, L.
Rudolph, H.
Scheel, C.
Schmitt, L.
Siebert, H.-W.
Simon, A.
Smith, V.J.
Thilmann, O.
Trombini, A.
Vesin, E.
Volkemer, B.
Vorwalter, K.
Walcher, T.
Wälder, G.
Werding, R.
Wittmann, E.
Zavertyaev, M.V.
Zeitschrift
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Language
Englisch