| Autor: |
A. Wylie, Rowan Bailey, T. W. L. Sanford, M. Rozanska, R.S. Gilmore, Martine Bosman, H.G.J.M. Tiecke, M. Gettner, W. Spierenburg, L. W. Wiggers, L. Hertzberger, C. Daum, C.J.S. Damerell, R. J. Whyley, D. Giddings, H. J. Seebrunner, A. R. Gillman, Fred Wickens, G. Waltermann, G. Lutz, H. Becker, W. Männer, G. J. Blanar, B.D. Hyams, C. Hardwick, Marcos Cerrada, T. Zeludziewicz, P. Sharp, W. Faissler, Jos Vermeulen, P. Weilhammer, Z. Hajduk, Hans Dijkstra, M. Turala, H. Dietl, A. Dwurazny, V. Chabaud, R. Jongerius, K. Rybicki, E. Lorenz, T. Böhringer, D. G. Bardsley, L. Görlich, G. Polok, U. Stierlin, R. Klanner, W. Hoogland, J. Malos, G. Lütjens, R. J. Tapper |
| Rok vydání: |
1983 |
| Předmět: |
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| Zdroj: |
Physics Letters B. 132:230-236 |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/0370-2693(83)90256-3 |
| Popis: |
An experiment has been performed to search for associated hadronic production of charmed mesons, using a large-aperture forward magnetic spectrometer setup in a π− beam at the CERN SPS. A prompt electron trigger was used to select events containing a pair by charmed particles. D mesons have been identified by reconstruction of hadronic decay modes such as Kπ, Kππ. Data have been taken at 120, 175, and 200 GeV, The D D cross section measured at 175 200 GeV is σ( D D ) = (48 ± 15) μ b with a systematic uncertainty of ±50%. The energy dependence of the cross section is measured to be σ( D D ) [120 GeV )/σ( D D [175/200 GeV ] = 0.62 ± 0.34 . |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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