| Autor: |
J. H. Bartley, H. Leutz, M. Tyndel, T. Azemoon, Salvatore Nuzzo, Horst Wenninger, W. Van Doninck, A.G. Michette, F. W. Bullock, O. Erriquez, S. J. Sewell, C. Vander Velde-Wilquet, Marc Neveu, J. P. Baton, Pierre Marage, M. Calicchio, S. Natali, T. Francois, C. Kochowski, M. Iori, G. Gerbier, R. Belusevic, P. Petiau, W. Venus, V. Brisson, H. H. Bingham, F. Romano, Jean Sacton, A. M. Cooper, J.G. Guy, S. W. O'Neale, F. Ruggieri, G. T. Jones, N. J. Baker, M.T. Fogli-Muciaccia, J. Alitti, M.F. Votruba, Gaston Wilquet, D.C. Colley, J. Moreels, D. Bertrand |
| Rok vydání: |
1980 |
| Předmět: |
|
| Zdroj: |
Physics Letters B. 93:521-524 |
| ISSN: |
0370-2693 |
| DOI: |
10.1016/0370-2693(80)90379-2 |
| Popis: |
An event with the decay chain Σ c + → Λ c + + π 0 , Λ c + → K − + p + π + , has been observed in an exposure of BEBC, equipped with a track sensitive target, to the wide band neutrino beam from the SPS at CERN. The event has a unique three constraint kinematic fit to the ΔS = − ΔQ reaction v + p → μ − + p + K − + π + + π + + π 0 with both gammas from the π 0 decay detected. The proton and other final state particles are identified. The masses are M ( Λ c + ) = 2290 ± 3 MeV/ c 2 , M ( Σ c + ) = 2457 ± 4 MeV/ c 2 and M ( Σ c + ) − M ( Λ c + ) = 168 ± 3 MeV/ c 2 . Including other data one obtains M ( Σ c ++ ) − M ( Σ c + ) = 0 ± 4 MeV/ c 2 . |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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