Search for narrow resonances in e+e− annihilation at petra

Autor: E. Lehmann, T. Azemoon, G. Knies, C. Y. Chang, B. Sechi-Zorn, Claus Grupen, W. Lührsen, B. Neumann, O. Achterberg, Ch. Berger, A. Eskreys, H.D. Mertiens, U. Michelsen, H. Spitzer, E. Lillethun, R. G. Glasser, U. Timm, V. Hepp, H. C. Dehne, R. O. Polvado, H. Ackermann, H. Kapitza, Stephanie Brandt, J. A. Skard, Fernando Barreiro, P. Waloschek, H. Genzel, L. Criegee, Ch. Gerke, E. Lillestöl, B. Koppitz, G. Franke, A. Diekmann, K. Wacker, H. Meyer, B. Lewendel, W. Lackas, H. J. Meyer, A. Klovning, G. Flügge, Volker Blobel, H.D. Reich, R. Grigull, K. Lau, L. Boesten, M. Rost, W. Zimmermann, T. N. Ranga Swamy, J. Bürger, G. E. Welch, G. T. Zorn, A. Bäcker, G. Zech, R. G. Kellogg, O. Meyer, K. H. Pape, W. Wagner, H. J. Daum, D. Schmidt, W. Gabriel, Andris Skuja, R. van Staa, G. G. Winter, Frank Raupach, B. Stella, R. Devenish, K. Derikum, M. Rössler
Rok vydání: 1980
Předmět:
Zdroj: Physics Letters B. 91:148-151
ISSN: 0370-2693
DOI: 10.1016/0370-2693(80)90681-4
Popis: We have performed a search for narrow resonances in the center of mass energy range from 29.90 to 31.46 GeV using the e+e− storage ring PETRA at DESY. We present the total cross section for hadron production and an upper limit for resonance production, indicating that no bound state of charge- 2 3 quarks exists in this energy range.
Databáze: OpenAIRE